12649272 has 16 divisors (see below), whose sum is σ = 31623240. Its totient is φ = 4216416.

The previous prime is 12649261. The next prime is 12649277. The reversal of 12649272 is 27294621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12649277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263503 + ... + 263550.

Almost surely, 2^12649272 is an apocalyptic number.

12649272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12649272 is an abundant number, since it is smaller than the sum of its proper divisors (18973968).

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

12649272 is a wasteful number, since it uses less digits than its factorization.

12649272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527062 (or 527058 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 12649272 is about 3556.5815047599. The cubic root of 12649272 is about 232.9996009007. Note that the first 3 decimals are identical.

It can be divided in two parts, 12649 and 272, that added together give a palindrome (12921).

The spelling of 12649272 in words is "twelve million, six hundred forty-nine thousand, two hundred seventy-two".