1622928 has 20 divisors (see below), whose sum is σ = 4192688. Its totient is φ = 540960.

The previous prime is 1622917. The next prime is 1622947. The reversal of 1622928 is 8292261.

It is a junction number, because it is equal to n+sod(n) for n = 1622895 and 1622904.

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, 16858 + ... + 16953.

2^1622928 is an apocalyptic number.

It is an amenable number.

1622928 is an abundant number, since it is smaller than the sum of its proper divisors (2569760).

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

1622928 is a wasteful number, since it uses less digits than its factorization.

1622928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33822 (or 33816 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 1622928 is about 1273.9419139035. The cubic root of 1622928 is about 117.5167442563.

The spelling of 1622928 in words is "one million, six hundred twenty-two thousand, nine hundred twenty-eight".