39902948 has 6 divisors (see below), whose sum is σ = 69830166. Its totient is φ = 19951472.

The previous prime is 39902917. The next prime is 39902977. The reversal of 39902948 is 84920993.

39902948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 39664804 + 238144 = 6298^2 + 488^2 .

It is a junction number, because it is equal to n+sod(n) for n = 39902899 and 39902908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4987865 + ... + 4987872.

It is an arithmetic number, because the mean of its divisors is an integer number (11638361).

Almost surely, 2^39902948 is an apocalyptic number.

It is an amenable number.

39902948 is a deficient number, since it is larger than the sum of its proper divisors (29927218).

39902948 is a wasteful number, since it uses less digits than its factorization.

39902948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9975741 (or 9975739 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 39902948 is about 6316.8780263671. The cubic root of 39902948 is about 341.7183710238.

The spelling of 39902948 in words is "thirty-nine million, nine hundred two thousand, nine hundred forty-eight".