1591422 has 24 divisors (see below), whose sum is σ = 3703176. Its totient is φ = 454608.

The previous prime is 1591417. The next prime is 1591441. The reversal of 1591422 is 2241951.

It is a junction number, because it is equal to n+sod(n) for n = 1591392 and 1591401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2413 + ... + 3000.

It is an arithmetic number, because the mean of its divisors is an integer number (154299).

2^1591422 is an apocalyptic number.

1591422 is an abundant number, since it is smaller than the sum of its proper divisors (2111754).

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

1591422 is a wasteful number, since it uses less digits than its factorization.

1591422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5432 (or 5425 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 1591422 is about 1261.5157549551. The cubic root of 1591422 is about 116.7513163438.

The spelling of 1591422 in words is "one million, five hundred ninety-one thousand, four hundred twenty-two".