64545392 has 20 divisors (see below), whose sum is σ = 125829000. Its totient is φ = 32073408.

The previous prime is 64545389. The next prime is 64545409. The reversal of 64545392 is 29354546.

64545392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64545392² = 8332215256867328, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9767 + ... + 14982.

It is an arithmetic number, because the mean of its divisors is an integer number (6291450).

Almost surely, 2^64545392 is an apocalyptic number.

It is an amenable number.

64545392 is a deficient number, since it is larger than the sum of its proper divisors (61283608).

64545392 is a wasteful number, since it uses less digits than its factorization.

64545392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24920 (or 24914 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The square root of 64545392 is about 8034.0146875644. The cubic root of 64545392 is about 401.1330209619.

The spelling of 64545392 in words is "sixty-four million, five hundred forty-five thousand, three hundred ninety-two".