64044018 has 12 divisors (see below), whose sum is σ = 138762078. Its totient is φ = 21348000.

The previous prime is 64044017. The next prime is 64044037. The reversal of 64044018 is 81044046.

64044018 is a `hidden beast` number, since 640 + 4 + 4 + 0 + 18 = 666.

It can be written as a sum of positive squares in only one way, i.e., 60793209 + 3250809 = 7797^2 + 1803^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64043982 and 64044000.

It is not an unprimeable number, because it can be changed into a prime (64044017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1778983 + ... + 1779018.

Almost surely, 2^64044018 is an apocalyptic number.

64044018 is an abundant number, since it is smaller than the sum of its proper divisors (74718060).

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

64044018 is a wasteful number, since it uses less digits than its factorization.

64044018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558009 (or 3558006 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 64044018 is about 8002.7506521196. The cubic root of 64044018 is about 400.0916831506.

The spelling of 64044018 in words is "sixty-four million, forty-four thousand, eighteen".