1622560 has 24 divisors (see below), whose sum is σ = 3833676. Its totient is φ = 648960.

The previous prime is 1622557. The next prime is 1622573. The reversal of 1622560 is 652261.

It can be written as a sum of positive squares in 2 ways, for example, as 1527696 + 94864 = 1236^2 + 308^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4911 + ... + 5230.

2^1622560 is an apocalyptic number.

1622560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1622560 is an abundant number, since it is smaller than the sum of its proper divisors (2211116).

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

1622560 is a wasteful number, since it uses less digits than its factorization.

1622560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10156 (or 10148 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1622560 is about 1273.7974721281. The cubic root of 1622560 is about 117.5078612516.

Subtracting from 1622560 its reverse (652261), we obtain a cube (970299 = 99³).

The spelling of 1622560 in words is "one million, six hundred twenty-two thousand, five hundred sixty".