622486690 has 64 divisors (see below), whose sum is σ = 1317888000. Its totient is φ = 211595328.

The previous prime is 622486681. The next prime is 622486691. The reversal of 622486690 is 96684226.

It is a super-2 number, since 2×622486690² = 774979358454312200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (622486691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 434896 + ... + 436324.

It is an arithmetic number, because the mean of its divisors is an integer number (20592000).

Almost surely, 2^622486690 is an apocalyptic number.

622486690 is an abundant number, since it is smaller than the sum of its proper divisors (695401310).

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

622486690 is a wasteful number, since it uses less digits than its factorization.

622486690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584 (or 1570 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 622486690 is about 24949.6831643209. The cubic root of 622486690 is about 853.8403804516.

The spelling of 622486690 in words is "six hundred twenty-two million, four hundred eighty-six thousand, six hundred ninety".