12990532 has 12 divisors (see below), whose sum is σ = 22787856. Its totient is φ = 6479720.

The previous prime is 12990503. The next prime is 12990541. The reversal of 12990532 is 23509921.

It is a junction number, because it is equal to n+sod(n) for n = 12990494 and 12990503.

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, 1894 + ... + 5437.

It is an arithmetic number, because the mean of its divisors is an integer number (1898988).

Almost surely, 2^12990532 is an apocalyptic number.

It is an amenable number.

12990532 is a deficient number, since it is larger than the sum of its proper divisors (9797324).

12990532 is a wasteful number, since it uses less digits than its factorization.

12990532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7778 (or 7776 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 12990532 is about 3604.2380609499. The cubic root of 12990532 is about 235.0763717371.

The spelling of 12990532 in words is "twelve million, nine hundred ninety thousand, five hundred thirty-two".