12400974 has 24 divisors (see below), whose sum is σ = 27326520. Its totient is φ = 4063248.

The previous prime is 12400967. The next prime is 12400981. The reversal of 12400974 is 47900421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12400967) and next prime (12400981).

It is a super-2 number, since 2×12400974² = 307568312297352, which contains 22 as substring.

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, 4777 + ... + 6900.

It is an arithmetic number, because the mean of its divisors is an integer number (1138605).

Almost surely, 2^12400974 is an apocalyptic number.

12400974 is an abundant number, since it is smaller than the sum of its proper divisors (14925546).

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

12400974 is a wasteful number, since it uses less digits than its factorization.

12400974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11744 (or 11741 counting only the distinct ones).

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

The square root of 12400974 is about 3521.5016683228. The cubic root of 12400974 is about 231.4649655352.

The spelling of 12400974 in words is "twelve million, four hundred thousand, nine hundred seventy-four".