12633544 has 32 divisors (see below), whose sum is σ = 29534400. Its totient is φ = 4921920.

The previous prime is 12633521. The next prime is 12633547. The reversal of 12633544 is 44533621.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (12633547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9639 + ... + 10870.

It is an arithmetic number, because the mean of its divisors is an integer number (922950).

Almost surely, 2^12633544 is an apocalyptic number.

12633544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12633544 is an abundant number, since it is smaller than the sum of its proper divisors (16900856).

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

12633544 is a wasteful number, since it uses less digits than its factorization.

12633544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20533 (or 20529 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 12633544 is about 3554.3697050251. The cubic root of 12633544 is about 232.9029909238.

It can be divided in two parts, 126 and 33544, that added together give a triangular number (33670 = T₂₅₉).

The spelling of 12633544 in words is "twelve million, six hundred thirty-three thousand, five hundred forty-four".