621230324 has 48 divisors (see below), whose sum is σ = 1291671360. Its totient is φ = 257706240.

The previous prime is 621230287. The next prime is 621230329. The reversal of 621230324 is 423032126.

It is a self number, because there is not a number n which added to its sum of digits gives 621230324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621230329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44807 + ... + 57009.

It is an arithmetic number, because the mean of its divisors is an integer number (26909820).

Almost surely, 2^621230324 is an apocalyptic number.

It is an amenable number.

621230324 is an abundant number, since it is smaller than the sum of its proper divisors (670441036).

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

621230324 is a wasteful number, since it uses less digits than its factorization.

621230324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12320 (or 12318 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 621230324 is about 24924.4924522045. The cubic root of 621230324 is about 853.2655577003.

The spelling of 621230324 in words is "six hundred twenty-one million, two hundred thirty thousand, three hundred twenty-four".