390415 has 8 divisors (see below), whose sum is σ = 473328. Its totient is φ = 309120.

The previous prime is 390413. The next prime is 390419. The reversal of 390415 is 514093.

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

It is not a de Polignac number, because 390415 - 2¹ = 390413 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220 + ... + 910.

It is an arithmetic number, because the mean of its divisors is an integer number (59166).

2³⁹⁰⁴¹⁵ is an apocalyptic number.

390415 is a deficient number, since it is larger than the sum of its proper divisors (82913).

390415 is a wasteful number, since it uses less digits than its factorization.

390415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 390415 is about 624.8319774147. The cubic root of 390415 is about 73.0873415077.

The spelling of 390415 in words is "three hundred ninety thousand, four hundred fifteen".