12942490 has 16 divisors (see below), whose sum is σ = 25414560. Its totient is φ = 4706320.

The previous prime is 12942487. The next prime is 12942509. The reversal of 12942490 is 9424921.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58720 + ... + 58939.

It is an arithmetic number, because the mean of its divisors is an integer number (1588410).

Almost surely, 2^12942490 is an apocalyptic number.

12942490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12942490 is a deficient number, since it is larger than the sum of its proper divisors (12472070).

12942490 is a wasteful number, since it uses less digits than its factorization.

12942490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117677.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 12942490 is about 3597.5672335621. The cubic root of 12942490 is about 234.7862247858.

The spelling of 12942490 in words is "twelve million, nine hundred forty-two thousand, four hundred ninety".