12538408 has 8 divisors (see below), whose sum is σ = 23509530. Its totient is φ = 6269200.

The previous prime is 12538399. The next prime is 12538417. The reversal of 12538408 is 80483521.

12538408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12538399) and next prime (12538417).

It can be written as a sum of positive squares in only one way, i.e., 11957764 + 580644 = 3458^2 + 762^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 12538408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 783643 + ... + 783658.

Almost surely, 2^12538408 is an apocalyptic number.

It is an amenable number.

12538408 is a deficient number, since it is larger than the sum of its proper divisors (10971122).

12538408 is a wasteful number, since it uses less digits than its factorization.

12538408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567307 (or 1567303 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 12538408 is about 3540.9614513575. The cubic root of 12538408 is about 232.3168974996.

The spelling of 12538408 in words is "twelve million, five hundred thirty-eight thousand, four hundred eight".