624634452 has 72 divisors (see below), whose sum is σ = 1711848320. Its totient is φ = 190900800.

The previous prime is 624634427. The next prime is 624634453. The reversal of 624634452 is 254436426.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (624634453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66249 + ... + 75087.

Almost surely, 2^624634452 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 624634452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (855924160).

624634452 is an abundant number, since it is smaller than the sum of its proper divisors (1087213868).

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

624634452 is a wasteful number, since it uses less digits than its factorization.

624634452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9013 (or 9008 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 624634452 is about 24992.6879706845. The cubic root of 624634452 is about 854.8212532873.

The spelling of 624634452 in words is "six hundred twenty-four million, six hundred thirty-four thousand, four hundred fifty-two".