12290972 has 12 divisors (see below), whose sum is σ = 21768936. Its totient is φ = 6071280.

The previous prime is 12290963. The next prime is 12290977. The reversal of 12290972 is 27909221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12290977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18179 + ... + 18842.

It is an arithmetic number, because the mean of its divisors is an integer number (1814078).

Almost surely, 2^12290972 is an apocalyptic number.

It is an amenable number.

12290972 is a deficient number, since it is larger than the sum of its proper divisors (9477964).

12290972 is a wasteful number, since it uses less digits than its factorization.

12290972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37108 (or 37106 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 12290972 is about 3505.8482568417. The cubic root of 12290972 is about 230.7785337674.

The spelling of 12290972 in words is "twelve million, two hundred ninety thousand, nine hundred seventy-two".