1622772560 has 40 divisors (see below), whose sum is σ = 3774836520. Its totient is φ = 648783872.

The previous prime is 1622772527. The next prime is 1622772607. The reversal of 1622772560 is 652772261.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 189998656 + 1432773904 = 13784^2 + 37852^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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, 214604 + ... + 222036.

It is an arithmetic number, because the mean of its divisors is an integer number (94370913).

Almost surely, 2^1622772560 is an apocalyptic number.

1622772560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1622772560 is an abundant number, since it is smaller than the sum of its proper divisors (2152063960).

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

1622772560 is a wasteful number, since it uses less digits than its factorization.

1622772560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10175 (or 10169 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 1622772560 is about 40283.6512744314. The cubic root of 1622772560 is about 1175.1299231618.

The spelling of 1622772560 in words is "one billion, six hundred twenty-two million, seven hundred seventy-two thousand, five hundred sixty".