622420032 has 56 divisors (see below), whose sum is σ = 1773505216. Its totient is φ = 191513088.

The previous prime is 622420021. The next prime is 622420033. The reversal of 622420032 is 230024226.

It is a junction number, because it is equal to n+sod(n) for n = 622419990 and 622420008.

It is not an unprimeable number, because it can be changed into a prime (622420033) 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, 122188 + ... + 127179.

It is an arithmetic number, because the mean of its divisors is an integer number (31669736).

Almost surely, 2^622420032 is an apocalyptic number.

It is an amenable number.

622420032 is an abundant number, since it is smaller than the sum of its proper divisors (1151085184).

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

622420032 is a wasteful number, since it uses less digits than its factorization.

622420032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249395 (or 249385 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 622420032 is about 24948.3472799302. The cubic root of 622420032 is about 853.8099019827.

Adding to 622420032 its reverse (230024226), we get a palindrome (852444258).

The spelling of 622420032 in words is "six hundred twenty-two million, four hundred twenty thousand, thirty-two".