622259820 has 504 divisors, whose sum is σ = 2491043184. Its totient is φ = 129330432.

The previous prime is 622259797. The next prime is 622259839. The reversal of 622259820 is 28952226.

622259820 is a `hidden beast` number, since 62 + 2 + 2 + 598 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 9287427 + ... + 9287493.

It is an arithmetic number, because the mean of its divisors is an integer number (4942546).

Almost surely, 2^622259820 is an apocalyptic number.

622259820 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622259820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1245521592).

622259820 is an abundant number, since it is smaller than the sum of its proper divisors (1868783364).

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

622259820 is a wasteful number, since it uses less digits than its factorization.

622259820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 622259820 is about 24945.1361992674. The cubic root of 622259820 is about 853.7366383111.

The spelling of 622259820 in words is "six hundred twenty-two million, two hundred fifty-nine thousand, eight hundred twenty".