12292772 has 18 divisors (see below), whose sum is σ = 22706838. Its totient is φ = 5822208.

The previous prime is 12292757. The next prime is 12292783. The reversal of 12292772 is 27729221.

12292772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12222016 + 70756 = 3496^2 + 266^2 .

It is a super-2 number, since 2×12292772² = 302224486887968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2813 + ... + 5700.

It is an arithmetic number, because the mean of its divisors is an integer number (1261491).

Almost surely, 2^12292772 is an apocalyptic number.

It is an amenable number.

12292772 is a deficient number, since it is larger than the sum of its proper divisors (10414066).

12292772 is a wasteful number, since it uses less digits than its factorization.

12292772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8555 (or 8534 counting only the distinct ones).

The product of its digits is 7056, while the sum is 32.

The square root of 12292772 is about 3506.1049613496. The cubic root of 12292772 is about 230.7897989758.

The spelling of 12292772 in words is "twelve million, two hundred ninety-two thousand, seven hundred seventy-two".