12730988 has 24 divisors (see below), whose sum is σ = 23654400. Its totient is φ = 5978448.

The previous prime is 12730979. The next prime is 12731003. The reversal of 12730988 is 88903721.

It is a super-2 number, since 2×12730988² = 324156110912288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8993 + ... + 10311.

It is an arithmetic number, because the mean of its divisors is an integer number (985600).

Almost surely, 2^12730988 is an apocalyptic number.

It is an amenable number.

12730988 is a deficient number, since it is larger than the sum of its proper divisors (10923412).

12730988 is a wasteful number, since it uses less digits than its factorization.

12730988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469 (or 1467 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 12730988 is about 3568.0510086040. The cubic root of 12730988 is about 233.5002605967.

The spelling of 12730988 in words is "twelve million, seven hundred thirty thousand, nine hundred eighty-eight".