39252820 has 24 divisors (see below), whose sum is σ = 85091328. Its totient is φ = 15194400.

The previous prime is 39252793. The next prime is 39252833. The reversal of 39252820 is 2825293.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

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, 31036 + ... + 32275.

It is an arithmetic number, because the mean of its divisors is an integer number (3545472).

Almost surely, 2^39252820 is an apocalyptic number.

It is an amenable number.

39252820 is an abundant number, since it is smaller than the sum of its proper divisors (45838508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39252820 is a wasteful number, since it uses less digits than its factorization.

39252820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63351 (or 63349 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 39252820 is about 6265.2070995299. The cubic root of 39252820 is about 339.8523580424.

The spelling of 39252820 in words is "thirty-nine million, two hundred fifty-two thousand, eight hundred twenty".