1622500660 has 96 divisors (see below), whose sum is σ = 3810022272. Its totient is φ = 575377920.

The previous prime is 1622500619. The next prime is 1622500697. The reversal of 1622500660 is 660052261.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2646514 + ... + 2647126.

It is an arithmetic number, because the mean of its divisors is an integer number (39687732).

Almost surely, 2^1622500660 is an apocalyptic number.

1622500660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1622500660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1905011136).

1622500660 is an abundant number, since it is smaller than the sum of its proper divisors (2187521612).

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

1622500660 is a wasteful number, since it uses less digits than its factorization.

1622500660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913 (or 911 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1622500660 is about 40280.2763148417. The cubic root of 1622500660 is about 1175.0642874136.

The spelling of 1622500660 in words is "one billion, six hundred twenty-two million, five hundred thousand, six hundred sixty".