1564422 has 16 divisors (see below), whose sum is σ = 3293760. Its totient is φ = 493992.

The previous prime is 1564421. The next prime is 1564427. The reversal of 1564422 is 2244651.

It is a junction number, because it is equal to n+sod(n) for n = 1564392 and 1564401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1564421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6748 + ... + 6975.

It is an arithmetic number, because the mean of its divisors is an integer number (205860).

2^1564422 is an apocalyptic number.

1564422 is an abundant number, since it is smaller than the sum of its proper divisors (1729338).

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

1564422 is a wasteful number, since it uses less digits than its factorization.

1564422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13747.

The product of its digits is 1920, while the sum is 24.

The square root of 1564422 is about 1250.7685637239. The cubic root of 1564422 is about 116.0872807248.

The spelling of 1564422 in words is "one million, five hundred sixty-four thousand, four hundred twenty-two".