622642452 has 48 divisors (see below), whose sum is σ = 1476784512. Its totient is φ = 204140160.

The previous prime is 622642439. The next prime is 622642469. The reversal of 622642452 is 254246226.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 624018 + ... + 625014.

It is an arithmetic number, because the mean of its divisors is an integer number (30766344).

Almost surely, 2^622642452 is an apocalyptic number.

It is an amenable number.

622642452 is an abundant number, since it is smaller than the sum of its proper divisors (854142060).

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

622642452 is a wasteful number, since it uses less digits than its factorization.

622642452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808 (or 1806 counting only the distinct ones).

The product of its digits is 46080, while the sum is 33.

The square root of 622642452 is about 24952.8044916799. The cubic root of 622642452 is about 853.9115920379.

Adding to 622642452 its reverse (254246226), we get a palindrome (876888678).

The spelling of 622642452 in words is "six hundred twenty-two million, six hundred forty-two thousand, four hundred fifty-two".