64157434 has 16 divisors (see below), whose sum is σ = 105333696. Its totient is φ = 29065600.

The previous prime is 64157413. The next prime is 64157459. The reversal of 64157434 is 43475146.

It is a self number, because there is not a number n which added to its sum of digits gives 64157434.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2154 + ... + 11530.

It is an arithmetic number, because the mean of its divisors is an integer number (6583356).

Almost surely, 2^64157434 is an apocalyptic number.

64157434 is a deficient number, since it is larger than the sum of its proper divisors (41176262).

64157434 is a wasteful number, since it uses less digits than its factorization.

64157434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9701.

The product of its digits is 40320, while the sum is 34.

The square root of 64157434 is about 8009.8335812924. The cubic root of 64157434 is about 400.3277189274.

The spelling of 64157434 in words is "sixty-four million, one hundred fifty-seven thousand, four hundred thirty-four".