622161280 has 64 divisors (see below), whose sum is σ = 1601787600. Its totient is φ = 229718016.

The previous prime is 622161269. The next prime is 622161283. The reversal of 622161280 is 82161226.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622161283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29070 + ... + 45709.

Almost surely, 2^622161280 is an apocalyptic number.

It is an amenable number.

622161280 is an abundant number, since it is smaller than the sum of its proper divisors (979626320).

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

622161280 is a wasteful number, since it uses less digits than its factorization.

622161280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74811 (or 74799 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 622161280 is about 24943.1609865310. The cubic root of 622161280 is about 853.6915705078.

The spelling of 622161280 in words is "six hundred twenty-two million, one hundred sixty-one thousand, two hundred eighty".