39820252 has 12 divisors (see below), whose sum is σ = 69730920. Its totient is φ = 19897136.

The previous prime is 39820243. The next prime is 39820271. The reversal of 39820252 is 25202893.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7899 + ... + 11917.

It is an arithmetic number, because the mean of its divisors is an integer number (5810910).

Almost surely, 2^39820252 is an apocalyptic number.

It is an amenable number.

39820252 is a deficient number, since it is larger than the sum of its proper divisors (29910668).

39820252 is a wasteful number, since it uses less digits than its factorization.

39820252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500 (or 6498 counting only the distinct ones).

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

The square root of 39820252 is about 6310.3289930082. The cubic root of 39820252 is about 341.4821454837.

The spelling of 39820252 in words is "thirty-nine million, eight hundred twenty thousand, two hundred fifty-two".