12957340 has 24 divisors (see below), whose sum is σ = 29684592. Its totient is φ = 4711680.

The previous prime is 12957337. The next prime is 12957361. The reversal of 12957340 is 4375921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29229 + ... + 29668.

It is an arithmetic number, because the mean of its divisors is an integer number (1236858).

Almost surely, 2^12957340 is an apocalyptic number.

12957340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12957340 is an abundant number, since it is smaller than the sum of its proper divisors (16727252).

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

12957340 is a wasteful number, since it uses less digits than its factorization.

12957340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58917 (or 58915 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 12957340 is about 3599.6305365968. The cubic root of 12957340 is about 234.8759870805.

The spelling of 12957340 in words is "twelve million, nine hundred fifty-seven thousand, three hundred forty".