12975408 has 30 divisors (see below), whose sum is σ = 36313524. Its totient is φ = 4325088.

The previous prime is 12975401. The next prime is 12975439. The reversal of 12975408 is 80457921.

It is a super-2 number, since 2×12975408² = 336722425532928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12975401) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 44910 + ... + 45197.

Almost surely, 2^12975408 is an apocalyptic number.

12975408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12975408 is an abundant number, since it is smaller than the sum of its proper divisors (23338116).

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

12975408 is a wasteful number, since it uses less digits than its factorization.

12975408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90121 (or 90112 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 12975408 is about 3602.1393643223. The cubic root of 12975408 is about 234.9851084573.

The spelling of 12975408 in words is "twelve million, nine hundred seventy-five thousand, four hundred eight".