39930056 has 8 divisors (see below), whose sum is σ = 74868870. Its totient is φ = 19965024.

The previous prime is 39930031. The next prime is 39930073. The reversal of 39930056 is 65003993.

It can be written as a sum of positive squares in only one way, i.e., 37576900 + 2353156 = 6130^2 + 1534^2 .

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 = 39929998 and 39930025.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2495621 + ... + 2495636.

Almost surely, 2^39930056 is an apocalyptic number.

It is an amenable number.

39930056 is a deficient number, since it is larger than the sum of its proper divisors (34938814).

39930056 is a wasteful number, since it uses less digits than its factorization.

39930056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4991263 (or 4991259 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 39930056 is about 6319.0233422579. The cubic root of 39930056 is about 341.7957354391.

The spelling of 39930056 in words is "thirty-nine million, nine hundred thirty thousand, fifty-six".