390485084 has 12 divisors (see below), whose sum is σ = 745471608. Its totient is φ = 177493200.

The previous prime is 390485077. The next prime is 390485113. The reversal of 390485084 is 480584093.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4437287 + ... + 4437374.

It is an arithmetic number, because the mean of its divisors is an integer number (62122634).

Almost surely, 2^390485084 is an apocalyptic number.

It is an amenable number.

390485084 is a deficient number, since it is larger than the sum of its proper divisors (354986524).

390485084 is a wasteful number, since it uses less digits than its factorization.

390485084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8874676 (or 8874674 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 390485084 is about 19760.6954331066. The cubic root of 390485084 is about 730.9171458658.

Subtracting 390485084 from its reverse (480584093), we obtain a palindrome (90099009).

It can be divided in two parts, 3904 and 85084, that added together give a palindrome (88988).

The spelling of 390485084 in words is "three hundred ninety million, four hundred eighty-five thousand, eighty-four".