1390532232 has 16 divisors (see below), whose sum is σ = 3476330640. Its totient is φ = 463510736.

The previous prime is 1390532189. The next prime is 1390532317. The reversal of 1390532232 is 2322350931.

It is a self number, because there is not a number n which added to its sum of digits gives 1390532232.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28969398 + ... + 28969445.

It is an arithmetic number, because the mean of its divisors is an integer number (217270665).

Almost surely, 2^1390532232 is an apocalyptic number.

1390532232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1390532232 is an abundant number, since it is smaller than the sum of its proper divisors (2085798408).

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

1390532232 is a wasteful number, since it uses less digits than its factorization.

1390532232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57938852 (or 57938848 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 1390532232 is about 37289.8408685261. The cubic root of 1390532232 is about 1116.1614532409.

The spelling of 1390532232 in words is "one billion, three hundred ninety million, five hundred thirty-two thousand, two hundred thirty-two".