390630648 has 16 divisors (see below), whose sum is σ = 976576680. Its totient is φ = 130210208.

The previous prime is 390630637. The next prime is 390630683. The reversal of 390630648 is 846036093.

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, 8138115 + ... + 8138162.

Almost surely, 2^390630648 is an apocalyptic number.

It is an amenable number.

390630648 is an abundant number, since it is smaller than the sum of its proper divisors (585946032).

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

390630648 is a wasteful number, since it uses less digits than its factorization.

390630648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16276286 (or 16276282 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 390630648 is about 19764.3782598897. The cubic root of 390630648 is about 731.0079577047.

The spelling of 390630648 in words is "three hundred ninety million, six hundred thirty thousand, six hundred forty-eight".