622252646400 has 1008 divisors, whose sum is σ = 2612336192640. Its totient is φ = 129230438400.

The previous prime is 622252646359. The next prime is 622252646413. The reversal of 622252646400 is 4646252226.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 331160661 + ... + 331162539.

Almost surely, 2^622252646400 is an apocalyptic number.

622252646400 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 622252646400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306168096320).

622252646400 is an abundant number, since it is smaller than the sum of its proper divisors (1990083546240).

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

622252646400 is a wasteful number, since it uses less digits than its factorization.

622252646400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943 (or 1907 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

Adding to 622252646400 its reverse (4646252226), we get a palindrome (626898898626).

The spelling of 622252646400 in words is "six hundred twenty-two billion, two hundred fifty-two million, six hundred forty-six thousand, four hundred".