389657092 has 48 divisors (see below), whose sum is σ = 788014080. Its totient is φ = 166730400.

The previous prime is 389657087. The next prime is 389657117. The reversal of 389657092 is 290756983.

It is a super-3 number, since 3×389657092³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138217 + ... + 141007.

It is an arithmetic number, because the mean of its divisors is an integer number (16416960).

Almost surely, 2^389657092 is an apocalyptic number.

It is an amenable number.

389657092 is an abundant number, since it is smaller than the sum of its proper divisors (398356988).

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

389657092 is a wasteful number, since it uses less digits than its factorization.

389657092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992 (or 2990 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 389657092 is about 19739.7338381246. The cubic root of 389657092 is about 730.4001634138.

The spelling of 389657092 in words is "three hundred eighty-nine million, six hundred fifty-seven thousand, ninety-two".