390616 has 16 divisors (see below), whose sum is σ = 739440. Its totient is φ = 193440.

The previous prime is 390581. The next prime is 390647. The reversal of 390616 is 616093.

It is a nialpdrome in base 5.

It is a congruent number.

It is an unprimeable number.

390616 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1101 + ... + 1411.

It is an arithmetic number, because the mean of its divisors is an integer number (46215).

2³⁹⁰⁶¹⁶ is an apocalyptic number.

It is an amenable number.

390616 is a deficient number, since it is larger than the sum of its proper divisors (348824).

390616 is a wasteful number, since it uses less digits than its factorization.

390616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 390616 is about 624.9927999585. The cubic root of 390616 is about 73.0998820396.

The spelling of 390616 in words is "three hundred ninety thousand, six hundred sixteen".