390326481 has 24 divisors (see below), whose sum is σ = 596604320. Its totient is φ = 245223936.

The previous prime is 390326473. The next prime is 390326501. The reversal of 390326481 is 184623093.

390326481 is a `hidden beast` number, since 3 + 9 + 0 + 3 + 2 + 648 + 1 = 666.

It is not a de Polignac number, because 390326481 - 2³ = 390326473 is a prime.

It is a super-2 number, since 2×390326481² = 304709523539686722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390326411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27090 + ... + 38916.

Almost surely, 2^390326481 is an apocalyptic number.

It is an amenable number.

390326481 is a deficient number, since it is larger than the sum of its proper divisors (206277839).

390326481 is a wasteful number, since it uses less digits than its factorization.

390326481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12045 (or 12042 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 390326481 is about 19756.6819329563. The cubic root of 390326481 is about 730.8181737962.

The spelling of 390326481 in words is "three hundred ninety million, three hundred twenty-six thousand, four hundred eighty-one".