39948136 has 8 divisors (see below), whose sum is σ = 74902770. Its totient is φ = 19974064.

The previous prime is 39948101. The next prime is 39948151. The reversal of 39948136 is 63184993.

It can be written as a sum of positive squares in only one way, i.e., 36360900 + 3587236 = 6030^2 + 1894^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 39948092 and 39948101.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2496751 + ... + 2496766.

Almost surely, 2^39948136 is an apocalyptic number.

It is an amenable number.

39948136 is a deficient number, since it is larger than the sum of its proper divisors (34954634).

39948136 is a wasteful number, since it uses less digits than its factorization.

39948136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4993523 (or 4993519 counting only the distinct ones).

The product of its digits is 139968, while the sum is 43.

The square root of 39948136 is about 6320.4537811774. The cubic root of 39948136 is about 341.8473150848.

The spelling of 39948136 in words is "thirty-nine million, nine hundred forty-eight thousand, one hundred thirty-six".