622890020 has 24 divisors (see below), whose sum is σ = 1325990904. Its totient is φ = 245742336.

The previous prime is 622890011. The next prime is 622890031. The reversal of 622890020 is 20098226.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14577124 + 608312896 = 3818^2 + 24664^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211859 + ... + 214778.

It is an arithmetic number, because the mean of its divisors is an integer number (55249621).

Almost surely, 2^622890020 is an apocalyptic number.

It is an amenable number.

622890020 is an abundant number, since it is smaller than the sum of its proper divisors (703100884).

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

622890020 is a wasteful number, since it uses less digits than its factorization.

622890020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426719 (or 426717 counting only the distinct ones).

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

The square root of 622890020 is about 24957.7647236286. The cubic root of 622890020 is about 854.0247512420.

The spelling of 622890020 in words is "six hundred twenty-two million, eight hundred ninety thousand, twenty".