1391892 has 24 divisors (see below), whose sum is σ = 3439296. Its totient is φ = 436608.

The previous prime is 1391861. The next prime is 1391893. The reversal of 1391892 is 2981931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3208 + ... + 3615.

It is an arithmetic number, because the mean of its divisors is an integer number (143304).

2^1391892 is an apocalyptic number.

1391892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1391892 is an abundant number, since it is smaller than the sum of its proper divisors (2047404).

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

1391892 is a wasteful number, since it uses less digits than its factorization.

1391892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6847 (or 6845 counting only the distinct ones).

The product of its digits is 3888, while the sum is 33.

The square root of 1391892 is about 1179.7847261259. The cubic root of 1391892 is about 111.6525157187.

The spelling of 1391892 in words is "one million, three hundred ninety-one thousand, eight hundred ninety-two".