622345920 has 224 divisors, whose sum is σ = 2320186368. Its totient is φ = 138350592.

The previous prime is 622345907. The next prime is 622345949. The reversal of 622345920 is 29543226.

It is a tau number, because it is divible by the number of its divisors (224).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247389 + ... + 249891.

Almost surely, 2^622345920 is an apocalyptic number.

622345920 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 622345920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1160093184).

622345920 is an abundant number, since it is smaller than the sum of its proper divisors (1697840448).

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

622345920 is a wasteful number, since it uses less digits than its factorization.

622345920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567 (or 2557 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 622345920 is about 24946.8619269038. The cubic root of 622345920 is about 853.7760127183.

The spelling of 622345920 in words is "six hundred twenty-two million, three hundred forty-five thousand, nine hundred twenty".