12649232 has 20 divisors (see below), whose sum is σ = 24736140. Its totient is φ = 6265728.

The previous prime is 12649223. The next prime is 12649237. The reversal of 12649232 is 23294621.

It can be written as a sum of positive squares in 2 ways, for example, as 9024016 + 3625216 = 3004^2 + 1904^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12649195 and 12649204.

It is not an unprimeable number, because it can be changed into a prime (12649237) 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, 1883 + ... + 5370.

It is an arithmetic number, because the mean of its divisors is an integer number (1236807).

Almost surely, 2^12649232 is an apocalyptic number.

It is an amenable number.

12649232 is a deficient number, since it is larger than the sum of its proper divisors (12086908).

12649232 is a wasteful number, since it uses less digits than its factorization.

12649232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7370 (or 7364 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 12649232 is about 3556.5758813780. The cubic root of 12649232 is about 232.9993553004. Note that the first 3 decimals are identical.

The spelling of 12649232 in words is "twelve million, six hundred forty-nine thousand, two hundred thirty-two".