621135332 has 24 divisors (see below), whose sum is σ = 1141498176. Its totient is φ = 295165728.

The previous prime is 621135331. The next prime is 621135353. The reversal of 621135332 is 233531126.

It is not an unprimeable number, because it can be changed into a prime (621135331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7058 + ... + 35945.

It is an arithmetic number, because the mean of its divisors is an integer number (47562424).

Almost surely, 2^621135332 is an apocalyptic number.

It is an amenable number.

621135332 is a deficient number, since it is larger than the sum of its proper divisors (520362844).

621135332 is a wasteful number, since it uses less digits than its factorization.

621135332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43187 (or 43185 counting only the distinct ones).

The product of its digits is 3240, while the sum is 26.

The square root of 621135332 is about 24922.5867838794. The cubic root of 621135332 is about 853.2220646885. Note that the first 3 decimals are identical.

Adding to 621135332 its reverse (233531126), we get a palindrome (854666458).

The spelling of 621135332 in words is "six hundred twenty-one million, one hundred thirty-five thousand, three hundred thirty-two".