12507740 has 36 divisors (see below), whose sum is σ = 30557016. Its totient is φ = 4288032.

The previous prime is 12507721. The next prime is 12507763. The reversal of 12507740 is 4770521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5402 + ... + 7361.

It is an arithmetic number, because the mean of its divisors is an integer number (848806).

Almost surely, 2^12507740 is an apocalyptic number.

12507740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12507740 is an abundant number, since it is smaller than the sum of its proper divisors (18049276).

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

12507740 is a wasteful number, since it uses less digits than its factorization.

12507740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12786 (or 12777 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 12507740 is about 3536.6283378382. The cubic root of 12507740 is about 232.1273329940.

The spelling of 12507740 in words is "twelve million, five hundred seven thousand, seven hundred forty".