390488007 has 32 divisors (see below), whose sum is σ = 653900800. Its totient is φ = 205964640.

The previous prime is 390487991. The next prime is 390488029. The reversal of 390488007 is 700884093.

It is not a de Polignac number, because 390488007 - 2⁴ = 390487991 is a prime.

It is a super-2 number, since 2×390488007² = 304961767221664098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390488107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1219 + ... + 27972.

It is an arithmetic number, because the mean of its divisors is an integer number (20434400).

Almost surely, 2^390488007 is an apocalyptic number.

390488007 is a deficient number, since it is larger than the sum of its proper divisors (263412793).

390488007 is a wasteful number, since it uses less digits than its factorization.

390488007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29228 (or 29214 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 390488007 is about 19760.7693929159. The cubic root of 390488007 is about 730.9189696363.

The spelling of 390488007 in words is "three hundred ninety million, four hundred eighty-eight thousand, seven".