1591392 has 72 divisors (see below), whose sum is σ = 4625208. Its totient is φ = 478720.

The previous prime is 1591391. The next prime is 1591397. The reversal of 1591392 is 2931951.

It is a nialpdrome in base 11.

It is a zygodrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1591391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11548 + ... + 11684.

It is an arithmetic number, because the mean of its divisors is an integer number (64239).

2^1591392 is an apocalyptic number.

1591392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1591392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2312604).

1591392 is an abundant number, since it is smaller than the sum of its proper divisors (3033816).

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

1591392 is a wasteful number, since it uses less digits than its factorization.

1591392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 153 counting only the distinct ones).

The product of its digits is 2430, while the sum is 30.

The square root of 1591392 is about 1261.5038644412. The cubic root of 1591392 is about 116.7505827103.

It can be divided in two parts, 159 and 1392, that added together give a palindrome (1551).

The spelling of 1591392 in words is "one million, five hundred ninety-one thousand, three hundred ninety-two".