39904461 has 16 divisors (see below), whose sum is σ = 59238720. Its totient is φ = 26548560.

The previous prime is 39904451. The next prime is 39904477. The reversal of 39904461 is 16440993.

It is not a de Polignac number, because 39904461 - 2⁵ = 39904429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39904421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15346 + ... + 17756.

It is an arithmetic number, because the mean of its divisors is an integer number (3702420).

Almost surely, 2^39904461 is an apocalyptic number.

It is an amenable number.

39904461 is a deficient number, since it is larger than the sum of its proper divisors (19334259).

39904461 is a wasteful number, since it uses less digits than its factorization.

39904461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033 (or 3027 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 39904461 is about 6316.9977837577. The cubic root of 39904461 is about 341.7226899474.

The spelling of 39904461 in words is "thirty-nine million, nine hundred four thousand, four hundred sixty-one".