390129282 has 48 divisors (see below), whose sum is σ = 879223488. Its totient is φ = 124921440.

The previous prime is 390129269. The next prime is 390129307. The reversal of 390129282 is 282921093.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43083 + ... + 51345.

It is an arithmetic number, because the mean of its divisors is an integer number (18317156).

Almost surely, 2^390129282 is an apocalyptic number.

390129282 is an abundant number, since it is smaller than the sum of its proper divisors (489094206).

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

390129282 is a wasteful number, since it uses less digits than its factorization.

390129282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8375 (or 8372 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 390129282 is about 19751.6906111857. The cubic root of 390129282 is about 730.6950795005.

The spelling of 390129282 in words is "three hundred ninety million, one hundred twenty-nine thousand, two hundred eighty-two".