621020232 has 48 divisors (see below), whose sum is σ = 1922207040. Its totient is φ = 177434208.

The previous prime is 621020209. The next prime is 621020243. The reversal of 621020232 is 232020126.

621020232 is a `hidden beast` number, since 621 + 0 + 20 + 23 + 2 = 666.

It is a super-2 number, since 2×621020232² = 771332257106667648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 615588 + ... + 616595.

It is an arithmetic number, because the mean of its divisors is an integer number (40045980).

Almost surely, 2^621020232 is an apocalyptic number.

It is an amenable number.

621020232 is an abundant number, since it is smaller than the sum of its proper divisors (1301186808).

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

621020232 is a wasteful number, since it uses less digits than its factorization.

621020232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232202 (or 1232195 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 621020232 is about 24920.2775265445. The cubic root of 621020232 is about 853.1693590910.

Adding to 621020232 its reverse (232020126), we get a palindrome (853040358).

The spelling of 621020232 in words is "six hundred twenty-one million, twenty thousand, two hundred thirty-two".