39907228 has 12 divisors (see below), whose sum is σ = 73945872. Its totient is φ = 18779840.

The previous prime is 39907207. The next prime is 39907249. The reversal of 39907228 is 82270993.

It is an interprime number because it is at equal distance from previous prime (39907207) and next prime (39907249).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293368 + ... + 293503.

It is an arithmetic number, because the mean of its divisors is an integer number (6162156).

Almost surely, 2^39907228 is an apocalyptic number.

It is an amenable number.

39907228 is a deficient number, since it is larger than the sum of its proper divisors (34038644).

39907228 is a wasteful number, since it uses less digits than its factorization.

39907228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586892 (or 586890 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 39907228 is about 6317.2167922274. The cubic root of 39907228 is about 341.7305881858.

The spelling of 39907228 in words is "thirty-nine million, nine hundred seven thousand, two hundred twenty-eight".