622416400 has 60 divisors (see below), whose sum is σ = 1530173392. Its totient is φ = 243169920.

The previous prime is 622416373. The next prime is 622416401. The reversal of 622416400 is 4614226.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (622416401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 894 + ... + 35293.

Almost surely, 2^622416400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622416400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765086696).

622416400 is an abundant number, since it is smaller than the sum of its proper divisors (907756992).

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

622416400 is a wasteful number, since it uses less digits than its factorization.

622416400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36248 (or 36237 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 622416400 is about 24948.2744894311. The cubic root of 622416400 is about 853.8082412373.

The spelling of 622416400 in words is "six hundred twenty-two million, four hundred sixteen thousand, four hundred".