12291032 has 24 divisors (see below), whose sum is σ = 24957540. Its totient is φ = 5672160.

The previous prime is 12291029. The next prime is 12291049. The reversal of 12291032 is 23019221.

It is a junction number, because it is equal to n+sod(n) for n = 12290995 and 12291013.

It is a congruent number.

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, 3194 + ... + 5897.

Almost surely, 2^12291032 is an apocalyptic number.

It is an amenable number.

12291032 is an abundant number, since it is smaller than the sum of its proper divisors (12666508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12291032 is a wasteful number, since it uses less digits than its factorization.

12291032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9123 (or 9106 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12291032 is about 3505.8568139615. The cubic root of 12291032 is about 230.7789092921.

The spelling of 12291032 in words is "twelve million, two hundred ninety-one thousand, thirty-two".