12290032 has 10 divisors (see below), whose sum is σ = 23811968. Its totient is φ = 6145008.

The previous prime is 12290009. The next prime is 12290071. The reversal of 12290032 is 23009221.

It is a happy number.

It is a super-2 number, since 2×12290032² = 302089773122048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12289991 and 12290009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384048 + ... + 384079.

Almost surely, 2^12290032 is an apocalyptic number.

It is an amenable number.

12290032 is a deficient number, since it is larger than the sum of its proper divisors (11521936).

12290032 is an equidigital number, since it uses as much as digits as its factorization.

12290032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768135 (or 768129 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 12290032 is about 3505.7141925719. The cubic root of 12290032 is about 230.7726503881.

Adding to 12290032 its reverse (23009221), we get a palindrome (35299253).

The spelling of 12290032 in words is "twelve million, two hundred ninety thousand, thirty-two".