390424907 has 16 divisors (see below), whose sum is σ = 424401120. Its totient is φ = 357729792.

The previous prime is 390424897. The next prime is 390424913. The reversal of 390424907 is 709424093.

It is a cyclic number.

It is not a de Polignac number, because 390424907 - 2¹⁸ = 390162763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390424927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283673 + ... + 285045.

It is an arithmetic number, because the mean of its divisors is an integer number (26525070).

Almost surely, 2^390424907 is an apocalyptic number.

390424907 is a deficient number, since it is larger than the sum of its proper divisors (33976213).

390424907 is a wasteful number, since it uses less digits than its factorization.

390424907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 390424907 is about 19759.1727306585. The cubic root of 390424907 is about 730.8795971326.

The spelling of 390424907 in words is "three hundred ninety million, four hundred twenty-four thousand, nine hundred seven".