390324870 has 96 divisors (see below), whose sum is σ = 1100736000. Its totient is φ = 95392512.

The previous prime is 390324863. The next prime is 390324887. The reversal of 390324870 is 78423093.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173211 + ... + 175449.

It is an arithmetic number, because the mean of its divisors is an integer number (11466000).

Almost surely, 2^390324870 is an apocalyptic number.

390324870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 390324870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550368000).

390324870 is an abundant number, since it is smaller than the sum of its proper divisors (710411130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390324870 is a wasteful number, since it uses less digits than its factorization.

390324870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414 (or 2411 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 390324870 is about 19756.6411618979. The cubic root of 390324870 is about 730.8171683561.

The spelling of 390324870 in words is "three hundred ninety million, three hundred twenty-four thousand, eight hundred seventy".