12451380 has 24 divisors (see below), whose sum is σ = 34864032. Its totient is φ = 3320352.

The previous prime is 12451339. The next prime is 12451399. The reversal of 12451380 is 8315421.

It is a self number, because there is not a number n which added to its sum of digits gives 12451380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103702 + ... + 103821.

It is an arithmetic number, because the mean of its divisors is an integer number (1452668).

Almost surely, 2^12451380 is an apocalyptic number.

12451380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12451380 is an abundant number, since it is smaller than the sum of its proper divisors (22412652).

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

12451380 is a wasteful number, since it uses less digits than its factorization.

12451380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207535 (or 207533 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 12451380 is about 3528.6513004263. The cubic root of 12451380 is about 231.7781519781.

The spelling of 12451380 in words is "twelve million, four hundred fifty-one thousand, three hundred eighty".