1388408 has 16 divisors (see below), whose sum is σ = 2975280. Its totient is φ = 595008.

The previous prime is 1388393. The next prime is 1388411. The reversal of 1388408 is 8048831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12341 + ... + 12452.

It is an arithmetic number, because the mean of its divisors is an integer number (185955).

2^1388408 is an apocalyptic number.

It is an amenable number.

1388408 is an abundant number, since it is smaller than the sum of its proper divisors (1586872).

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

1388408 is a wasteful number, since it uses less digits than its factorization.

1388408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24806 (or 24802 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 1388408 is about 1178.3072604376. The cubic root of 1388408 is about 111.5592799459.

The spelling of 1388408 in words is "one million, three hundred eighty-eight thousand, four hundred eight".