64474368 has 144 divisors (see below), whose sum is σ = 200148480. Its totient is φ = 18044928.

The previous prime is 64474367. The next prime is 64474369. The reversal of 64474368 is 86347446.

64474368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64474367) and next prime (64474369).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64474363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360103 + ... + 360281.

It is an arithmetic number, because the mean of its divisors is an integer number (1389920).

Almost surely, 2^64474368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64474368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100074240).

64474368 is an abundant number, since it is smaller than the sum of its proper divisors (135674112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64474368 is a wasteful number, since it uses less digits than its factorization.

64474368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 258 counting only the distinct ones).

The product of its digits is 387072, while the sum is 42.

The square root of 64474368 is about 8029.5932649170. The cubic root of 64474368 is about 400.9858349940.

The spelling of 64474368 in words is "sixty-four million, four hundred seventy-four thousand, three hundred sixty-eight".