12602640 has 40 divisors (see below), whose sum is σ = 39068928. Its totient is φ = 3360640.

The previous prime is 12602587. The next prime is 12602641. The reversal of 12602640 is 4620621.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (12602641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26016 + ... + 26495.

Almost surely, 2^12602640 is an apocalyptic number.

12602640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12602640 is an abundant number, since it is smaller than the sum of its proper divisors (26466288).

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

12602640 is a wasteful number, since it uses less digits than its factorization.

12602640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52527 (or 52521 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 12602640 is about 3550.0197182551. The cubic root of 12602640 is about 232.7129278416.

The spelling of 12602640 in words is "twelve million, six hundred two thousand, six hundred forty".