64118838 has 16 divisors (see below), whose sum is σ = 146557440. Its totient is φ = 18319656.

The previous prime is 64118837. The next prime is 64118851. The reversal of 64118838 is 83881146.

It is a super-2 number, since 2×64118838² = 8222450772940488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64118796 and 64118805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64118833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763278 + ... + 763361.

It is an arithmetic number, because the mean of its divisors is an integer number (9159840).

Almost surely, 2^64118838 is an apocalyptic number.

64118838 is an abundant number, since it is smaller than the sum of its proper divisors (82438602).

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

64118838 is a wasteful number, since it uses less digits than its factorization.

64118838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526651.

The product of its digits is 36864, while the sum is 39.

The square root of 64118838 is about 8007.4239303287. The cubic root of 64118838 is about 400.2474260859.

The spelling of 64118838 in words is "sixty-four million, one hundred eighteen thousand, eight hundred thirty-eight".