390414489 has 32 divisors (see below), whose sum is σ = 575109120. Its totient is φ = 234482688.

The previous prime is 390414467. The next prime is 390414523. The reversal of 390414489 is 984414093.

It is not a de Polignac number, because 390414489 - 2⁷ = 390414361 is a prime.

It is a super-2 number, since 2×390414489² = 304846946442262242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 390414489.

It is not an unprimeable number, because it can be changed into a prime (390414449) 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, 252252 + ... + 253794.

It is an arithmetic number, because the mean of its divisors is an integer number (17972160).

Almost surely, 2^390414489 is an apocalyptic number.

It is an amenable number.

390414489 is a deficient number, since it is larger than the sum of its proper divisors (184694631).

390414489 is a wasteful number, since it uses less digits than its factorization.

390414489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 390414489 is about 19758.9091045027. The cubic root of 390414489 is about 730.8730962057.

The spelling of 390414489 in words is "three hundred ninety million, four hundred fourteen thousand, four hundred eighty-nine".