1391622 has 16 divisors (see below), whose sum is σ = 2851632. Its totient is φ = 452480.

The previous prime is 1391597. The next prime is 1391627. The reversal of 1391622 is 2261931.

It is a super-2 number, since 2×1391622² = 3873223581768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1391592 and 1391601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391627) 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, 2583 + ... + 3074.

It is an arithmetic number, because the mean of its divisors is an integer number (178227).

2^1391622 is an apocalyptic number.

1391622 is an abundant number, since it is smaller than the sum of its proper divisors (1460010).

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

1391622 is a wasteful number, since it uses less digits than its factorization.

1391622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5703.

The product of its digits is 648, while the sum is 24.

The square root of 1391622 is about 1179.6702929209. The cubic root of 1391622 is about 111.6452957791.

The spelling of 1391622 in words is "one million, three hundred ninety-one thousand, six hundred twenty-two".