1622630180 has 12 divisors (see below), whose sum is σ = 3407523420. Its totient is φ = 649052064.

The previous prime is 1622630171. The next prime is 1622630183. The reversal of 1622630180 is 810362261.

It can be written as a sum of positive squares in 2 ways, for example, as 241615936 + 1381014244 = 15544^2 + 37162^2 .

It is not an unprimeable number, because it can be changed into a prime (1622630183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40565735 + ... + 40565774.

It is an arithmetic number, because the mean of its divisors is an integer number (283960285).

Almost surely, 2^1622630180 is an apocalyptic number.

1622630180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1622630180 is an abundant number, since it is smaller than the sum of its proper divisors (1784893240).

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

1622630180 is a wasteful number, since it uses less digits than its factorization.

1622630180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81131518 (or 81131516 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1622630180 is about 40281.8840175084. The cubic root of 1622630180 is about 1175.0955540218.

The spelling of 1622630180 in words is "one billion, six hundred twenty-two million, six hundred thirty thousand, one hundred eighty".