1388394 has 32 divisors (see below), whose sum is σ = 3527040. Its totient is φ = 396576.

The previous prime is 1388393. The next prime is 1388411. The reversal of 1388394 is 4938831.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1388393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1459 + ... + 2214.

It is an arithmetic number, because the mean of its divisors is an integer number (110220).

2^1388394 is an apocalyptic number.

1388394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1388394 is an abundant number, since it is smaller than the sum of its proper divisors (2138646).

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

1388394 is a wasteful number, since it uses less digits than its factorization.

1388394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691 (or 3685 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 1388394 is about 1178.3013196971. The cubic root of 1388394 is about 111.5589049756.

The spelling of 1388394 in words is "one million, three hundred eighty-eight thousand, three hundred ninety-four".