621322832 has 80 divisors (see below), whose sum is σ = 1348580352. Its totient is φ = 275374080.

The previous prime is 621322829. The next prime is 621322847. The reversal of 621322832 is 238223126.

It is a junction number, because it is equal to n+sod(n) for n = 621322795 and 621322804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1076528 + ... + 1077104.

Almost surely, 2^621322832 is an apocalyptic number.

621322832 is a gapful number since it is divisible by the number (62) 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 621322832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674290176).

621322832 is an abundant number, since it is smaller than the sum of its proper divisors (727257520).

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

621322832 is a wasteful number, since it uses less digits than its factorization.

621322832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 790 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 621322832 is about 24926.3481480942. The cubic root of 621322832 is about 853.3079091275.

Adding to 621322832 its reverse (238223126), we get a palindrome (859545958).

The spelling of 621322832 in words is "six hundred twenty-one million, three hundred twenty-two thousand, eight hundred thirty-two".