39404166 has 16 divisors (see below), whose sum is σ = 78870000. Its totient is φ = 13124448.

The previous prime is 39404089. The next prime is 39404171. The reversal of 39404166 is 66140493.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12960 + ... + 15708.

It is an arithmetic number, because the mean of its divisors is an integer number (4929375).

Almost surely, 2^39404166 is an apocalyptic number.

39404166 is an abundant number, since it is smaller than the sum of its proper divisors (39465834).

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

39404166 is a wasteful number, since it uses less digits than its factorization.

39404166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 39404166 is about 6277.2737713119. The cubic root of 39404166 is about 340.2885842833.

The spelling of 39404166 in words is "thirty-nine million, four hundred four thousand, one hundred sixty-six".