12811408 has 20 divisors (see below), whose sum is σ = 24885808. Its totient is φ = 6389280.

The previous prime is 12811399. The next prime is 12811423. The reversal of 12811408 is 80411821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7603 + ... + 9133.

Almost surely, 2^12811408 is an apocalyptic number.

It is an amenable number.

12811408 is a deficient number, since it is larger than the sum of its proper divisors (12074400).

12811408 is a wasteful number, since it uses less digits than its factorization.

12811408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062 (or 2056 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 12811408 is about 3579.3027253922. The cubic root of 12811408 is about 233.9908925766.

The spelling of 12811408 in words is "twelve million, eight hundred eleven thousand, four hundred eight".