12974040 has 128 divisors (see below), whose sum is σ = 44452800. Its totient is φ = 3363840.

The previous prime is 12974033. The next prime is 12974083. The reversal of 12974040 is 4047921.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12973995 and 12974013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44134 + ... + 44426.

Almost surely, 2^12974040 is an apocalyptic number.

12974040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12974040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22226400).

12974040 is an abundant number, since it is smaller than the sum of its proper divisors (31478760).

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

12974040 is a wasteful number, since it uses less digits than its factorization.

12974040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 12974040 is about 3601.9494721609. The cubic root of 12974040 is about 234.9768499906.

The spelling of 12974040 in words is "twelve million, nine hundred seventy-four thousand, forty".