1590439228 has 48 divisors (see below), whose sum is σ = 3379561920. Its totient is φ = 640313856.

The previous prime is 1590439219. The next prime is 1590439231. The reversal of 1590439228 is 8229340951.

It is a super-2 number, since 2×1590439228² = 5058993875922471968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3576 + ... + 56512.

It is an arithmetic number, because the mean of its divisors is an integer number (70407540).

Almost surely, 2^1590439228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1590439228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1689780960).

1590439228 is an abundant number, since it is smaller than the sum of its proper divisors (1789122692).

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

1590439228 is a wasteful number, since it uses less digits than its factorization.

1590439228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53014 (or 53012 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 1590439228 is about 39880.3112826367. The cubic root of 1590439228 is about 1167.2727839705.

The spelling of 1590439228 in words is "one billion, five hundred ninety million, four hundred thirty-nine thousand, two hundred twenty-eight".