12889632 has 48 divisors (see below), whose sum is σ = 38670912. Its totient is φ = 3682560.

The previous prime is 12889627. The next prime is 12889649. The reversal of 12889632 is 23698821.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×12889632² = 332285226190848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8919 + ... + 10262.

It is an arithmetic number, because the mean of its divisors is an integer number (805644).

Almost surely, 2^12889632 is an apocalyptic number.

12889632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12889632 is an abundant number, since it is smaller than the sum of its proper divisors (25781280).

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

12889632 is a wasteful number, since it uses less digits than its factorization.

12889632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19201 (or 19193 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 12889632 is about 3590.2133641331. The cubic root of 12889632 is about 234.4661610890.

The spelling of 12889632 in words is "twelve million, eight hundred eighty-nine thousand, six hundred thirty-two".