39223928 has 16 divisors (see below), whose sum is σ = 75917760. Its totient is φ = 18979200.

The previous prime is 39223909. The next prime is 39223931. The reversal of 39223928 is 82932293.

It is a junction number, because it is equal to n+sod(n) for n = 39223891 and 39223900.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 78833 + ... + 79328.

It is an arithmetic number, because the mean of its divisors is an integer number (4744860).

Almost surely, 2^39223928 is an apocalyptic number.

It is an amenable number.

39223928 is a deficient number, since it is larger than the sum of its proper divisors (36693832).

39223928 is a wasteful number, since it uses less digits than its factorization.

39223928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158198 (or 158194 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 39223928 is about 6262.9009252901. The cubic root of 39223928 is about 339.7689549102.

The spelling of 39223928 in words is "thirty-nine million, two hundred twenty-three thousand, nine hundred twenty-eight".