39375945 has 24 divisors (see below), whose sum is σ = 78002496. Its totient is φ = 18000288.

The previous prime is 39375929. The next prime is 39375991. The reversal of 39375945 is 54957393.

It is not a de Polignac number, because 39375945 - 2⁴ = 39375929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 39375945.

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 23 ways as a sum of consecutive naturals, for example, 62187 + ... + 62816.

It is an arithmetic number, because the mean of its divisors is an integer number (3250104).

Almost surely, 2^39375945 is an apocalyptic number.

39375945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39375945 is a deficient number, since it is larger than the sum of its proper divisors (38626551).

39375945 is a wasteful number, since it uses less digits than its factorization.

39375945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125021 (or 125018 counting only the distinct ones).

The product of its digits is 510300, while the sum is 45.

The square root of 39375945 is about 6275.0254979562. The cubic root of 39375945 is about 340.2073274127.

The spelling of 39375945 in words is "thirty-nine million, three hundred seventy-five thousand, nine hundred forty-five".