39750028 has 24 divisors (see below), whose sum is σ = 71491392. Its totient is φ = 19331664.

The previous prime is 39750019. The next prime is 39750043. The reversal of 39750028 is 82005793.

It is a junction number, because it is equal to n+sod(n) for n = 39749975 and 39750002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21351 + ... + 23137.

It is an arithmetic number, because the mean of its divisors is an integer number (2978808).

Almost surely, 2^39750028 is an apocalyptic number.

It is an amenable number.

39750028 is a deficient number, since it is larger than the sum of its proper divisors (31741364).

39750028 is a wasteful number, since it uses less digits than its factorization.

39750028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941 (or 1939 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 39750028 is about 6304.7623270033. The cubic root of 39750028 is about 341.2812899610.

The spelling of 39750028 in words is "thirty-nine million, seven hundred fifty thousand, twenty-eight".