39884868 has 18 divisors (see below), whose sum is σ = 100820174. Its totient is φ = 13294944.

The previous prime is 39884863. The next prime is 39884869. The reversal of 39884868 is 86848893.

It can be written as a sum of positive squares in only one way, i.e., 35141184 + 4743684 = 5928^2 + 2178^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (39884861) 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, 553921 + ... + 553992.

Almost surely, 2^39884868 is an apocalyptic number.

It is an amenable number.

39884868 is an abundant number, since it is smaller than the sum of its proper divisors (60935306).

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

39884868 is a wasteful number, since it uses less digits than its factorization.

39884868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107923 (or 1107918 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The square root of 39884868 is about 6315.4467775447. The cubic root of 39884868 is about 341.6667524357. Note that the first 3 decimals are identical.

The spelling of 39884868 in words is "thirty-nine million, eight hundred eighty-four thousand, eight hundred sixty-eight".