39924018 has 12 divisors (see below), whose sum is σ = 86502078. Its totient is φ = 13308000.

The previous prime is 39924013. The next prime is 39924043. The reversal of 39924018 is 81042993.

It can be written as a sum of positive squares in only one way, i.e., 31438449 + 8485569 = 5607^2 + 2913^2 .

It is not an unprimeable number, because it can be changed into a prime (39924013) 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, 1108983 + ... + 1109018.

Almost surely, 2^39924018 is an apocalyptic number.

39924018 is an abundant number, since it is smaller than the sum of its proper divisors (46578060).

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

39924018 is a wasteful number, since it uses less digits than its factorization.

39924018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218009 (or 2218006 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 39924018 is about 6318.5455604910. The cubic root of 39924018 is about 341.7785064234.

The spelling of 39924018 in words is "thirty-nine million, nine hundred twenty-four thousand, eighteen".