622909956 has 48 divisors (see below), whose sum is σ = 1468845504. Its totient is φ = 205449216.

The previous prime is 622909891. The next prime is 622909957. The reversal of 622909956 is 659909226.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (622909957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 925236 + ... + 925908.

It is an arithmetic number, because the mean of its divisors is an integer number (30600948).

Almost surely, 2^622909956 is an apocalyptic number.

It is an amenable number.

622909956 is an abundant number, since it is smaller than the sum of its proper divisors (845935548).

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

622909956 is a wasteful number, since it uses less digits than its factorization.

622909956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380 (or 1378 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 48.

The square root of 622909956 is about 24958.1641151748. The cubic root of 622909956 is about 854.0338623506.

The spelling of 622909956 in words is "six hundred twenty-two million, nine hundred nine thousand, nine hundred fifty-six".