39290868 has 18 divisors (see below), whose sum is σ = 99318674. Its totient is φ = 13096944.

The previous prime is 39290837. The next prime is 39290869. The reversal of 39290868 is 86809293.

It can be written as a sum of positive squares in only one way, i.e., 31606884 + 7683984 = 5622^2 + 2772^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39290869) 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, 545671 + ... + 545742.

Almost surely, 2^39290868 is an apocalyptic number.

It is an amenable number.

39290868 is an abundant number, since it is smaller than the sum of its proper divisors (60027806).

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

39290868 is a wasteful number, since it uses less digits than its factorization.

39290868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091423 (or 1091418 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 39290868 is about 6268.2428159732. The cubic root of 39290868 is about 339.9621295767.

The spelling of 39290868 in words is "thirty-nine million, two hundred ninety thousand, eight hundred sixty-eight".