390749862 has 16 divisors (see below), whose sum is σ = 827470512. Its totient is φ = 122588160.

The previous prime is 390749851. The next prime is 390749881. The reversal of 390749862 is 268947093.

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, 1915339 + ... + 1915542.

It is an arithmetic number, because the mean of its divisors is an integer number (51716907).

Almost surely, 2^390749862 is an apocalyptic number.

390749862 is an abundant number, since it is smaller than the sum of its proper divisors (436720650).

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

390749862 is a wasteful number, since it uses less digits than its factorization.

390749862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3830903.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 390749862 is about 19767.3939101744. The cubic root of 390749862 is about 731.0823139791.

The spelling of 390749862 in words is "three hundred ninety million, seven hundred forty-nine thousand, eight hundred sixty-two".