390583228 has 72 divisors (see below), whose sum is σ = 873325152. Its totient is φ = 149188608.

The previous prime is 390583213. The next prime is 390583231. The reversal of 390583228 is 822385093.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170700 + ... + 172972.

It is an arithmetic number, because the mean of its divisors is an integer number (12129516).

Almost surely, 2^390583228 is an apocalyptic number.

390583228 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390583228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436662576).

390583228 is an abundant number, since it is smaller than the sum of its proper divisors (482741924).

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

390583228 is a wasteful number, since it uses less digits than its factorization.

390583228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339 (or 2318 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 390583228 is about 19763.1785905001. The cubic root of 390583228 is about 730.9783766496.

The spelling of 390583228 in words is "three hundred ninety million, five hundred eighty-three thousand, two hundred twenty-eight".