39902842 has 32 divisors (see below), whose sum is σ = 72783360. Its totient is φ = 16016640.

The previous prime is 39902833. The next prime is 39902851. The reversal of 39902842 is 24820993.

It is an interprime number because it is at equal distance from previous prime (39902833) and next prime (39902851).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92367 + ... + 92797.

It is an arithmetic number, because the mean of its divisors is an integer number (2274480).

Almost surely, 2^39902842 is an apocalyptic number.

39902842 is a deficient number, since it is larger than the sum of its proper divisors (32880518).

39902842 is a wasteful number, since it uses less digits than its factorization.

39902842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 39902842 is about 6316.8696361410. The cubic root of 39902842 is about 341.7180684381.

The spelling of 39902842 in words is "thirty-nine million, nine hundred two thousand, eight hundred forty-two".