39313928 has 32 divisors (see below), whose sum is σ = 78343200. Its totient is φ = 18431232.

The previous prime is 39313927. The next prime is 39313933. The reversal of 39313928 is 82931393.

It is a junction number, because it is equal to n+sod(n) for n = 39313891 and 39313900.

It is not an unprimeable number, because it can be changed into a prime (39313927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63203 + ... + 63821.

It is an arithmetic number, because the mean of its divisors is an integer number (2448225).

Almost surely, 2^39313928 is an apocalyptic number.

It is an amenable number.

39313928 is a deficient number, since it is larger than the sum of its proper divisors (39029272).

39313928 is a wasteful number, since it uses less digits than its factorization.

39313928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109 (or 1105 counting only the distinct ones).

The product of its digits is 34992, while the sum is 38.

The square root of 39313928 is about 6270.0819771355. The cubic root of 39313928 is about 340.0286250409.

The spelling of 39313928 in words is "thirty-nine million, three hundred thirteen thousand, nine hundred twenty-eight".