390517385 has 8 divisors (see below), whose sum is σ = 483737856. Its totient is φ = 302335920.

The previous prime is 390517373. The next prime is 390517403. The reversal of 390517385 is 583715093.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 390517385 - 2⁶ = 390517321 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1259579 + ... + 1259888.

It is an arithmetic number, because the mean of its divisors is an integer number (60467232).

Almost surely, 2^390517385 is an apocalyptic number.

It is an amenable number.

390517385 is a deficient number, since it is larger than the sum of its proper divisors (93220471).

390517385 is a wasteful number, since it uses less digits than its factorization.

390517385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519503.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 390517385 is about 19761.5127204372. The cubic root of 390517385 is about 730.9372991783.

The spelling of 390517385 in words is "three hundred ninety million, five hundred seventeen thousand, three hundred eighty-five".