64457336 has 16 divisors (see below), whose sum is σ = 127967040. Its totient is φ = 30332800.

The previous prime is 64457333. The next prime is 64457359. The reversal of 64457336 is 63375446.

It is a self number, because there is not a number n which added to its sum of digits gives 64457336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64457333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236840 + ... + 237111.

It is an arithmetic number, because the mean of its divisors is an integer number (7997940).

Almost surely, 2^64457336 is an apocalyptic number.

It is an amenable number.

64457336 is a deficient number, since it is larger than the sum of its proper divisors (63509704).

64457336 is a wasteful number, since it uses less digits than its factorization.

64457336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473974 (or 473970 counting only the distinct ones).

The product of its digits is 181440, while the sum is 38.

The square root of 64457336 is about 8028.5326181065. The cubic root of 64457336 is about 400.9505228102.

The spelling of 64457336 in words is "sixty-four million, four hundred fifty-seven thousand, three hundred thirty-six".