622517472 has 72 divisors (see below), whose sum is σ = 1792758240. Its totient is φ = 204871680.

The previous prime is 622517449. The next prime is 622517549. The reversal of 622517472 is 274715226.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9072 + ... + 36432.

It is an arithmetic number, because the mean of its divisors is an integer number (24899420).

Almost surely, 2^622517472 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 622517472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (896379120).

622517472 is an abundant number, since it is smaller than the sum of its proper divisors (1170240768).

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

622517472 is a wasteful number, since it uses less digits than its factorization.

622517472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27456 (or 27445 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 622517472 is about 24950.3000382761. The cubic root of 622517472 is about 853.8544543704.

The spelling of 622517472 in words is "six hundred twenty-two million, five hundred seventeen thousand, four hundred seventy-two".