64314460 has 144 divisors (see below), whose sum is σ = 170069760. Its totient is φ = 20321280.

The previous prime is 64314457. The next prime is 64314461. The reversal of 64314460 is 6441346.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64314461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 880984 + ... + 881056.

It is an arithmetic number, because the mean of its divisors is an integer number (1181040).

Almost surely, 2^64314460 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 64314460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85034880).

64314460 is an abundant number, since it is smaller than the sum of its proper divisors (105755300).

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

64314460 is a wasteful number, since it uses less digits than its factorization.

64314460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 64314460 is about 8019.6296672602. The cubic root of 64314460 is about 400.6540549474.

It can be divided in two parts, 643144 and 60, that added together give a square (643204 = 802²).

The spelling of 64314460 in words is "sixty-four million, three hundred fourteen thousand, four hundred sixty".