64224306 has 16 divisors (see below), whose sum is σ = 142720800. Its totient is φ = 21408084.

The previous prime is 64224301. The next prime is 64224361. The reversal of 64224306 is 60342246.

It is a super-2 number, since 2×64224306² = 8249522962363272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 64224306.

It is not an unprimeable number, because it can be changed into a prime (64224301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594616 + ... + 594723.

It is an arithmetic number, because the mean of its divisors is an integer number (8920050).

Almost surely, 2^64224306 is an apocalyptic number.

64224306 is an abundant number, since it is smaller than the sum of its proper divisors (78496494).

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

64224306 is a wasteful number, since it uses less digits than its factorization.

64224306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189350 (or 1189344 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 64224306 is about 8014.0068629868. The cubic root of 64224306 is about 400.4667592942.

The spelling of 64224306 in words is "sixty-four million, two hundred twenty-four thousand, three hundred six".