64240858 has 32 divisors (see below), whose sum is σ = 115162560. Its totient is φ = 26530560.

The previous prime is 64240837. The next prime is 64240859. The reversal of 64240858 is 85804246.

It is not an unprimeable number, because it can be changed into a prime (64240859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7885 + ... + 13807.

It is an arithmetic number, because the mean of its divisors is an integer number (3598830).

Almost surely, 2^64240858 is an apocalyptic number.

64240858 is a deficient number, since it is larger than the sum of its proper divisors (50921702).

64240858 is a wasteful number, since it uses less digits than its factorization.

64240858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5982.

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 64240858 is about 8015.0394883619. The cubic root of 64240858 is about 400.5011593361.

The spelling of 64240858 in words is "sixty-four million, two hundred forty thousand, eight hundred fifty-eight".