621232 has 20 divisors (see below), whose sum is σ = 1234296. Its totient is φ = 302720.

The previous prime is 621227. The next prime is 621239. The reversal of 621232 is 232126.

621232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a plaindrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 621232.

It is not an unprimeable number, because it can be changed into a prime (621239) by changing a digit.

621232 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183 + ... + 1129.

2⁶²¹²³² is an apocalyptic number.

It is an amenable number.

621232 is a deficient number, since it is larger than the sum of its proper divisors (613064).

621232 is a wasteful number, since it uses less digits than its factorization.

621232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996 (or 990 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 621232 is about 788.1827199324. The cubic root of 621232 is about 85.3266325033.

Adding to 621232 its reverse (232126), we get a palindrome (853358).

The spelling of 621232 in words is "six hundred twenty-one thousand, two hundred thirty-two".