612432 has 30 divisors (see below), whose sum is σ = 1714362. Its totient is φ = 204096.

The previous prime is 612407. The next prime is 612439. The reversal of 612432 is 234216.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 404496 + 207936 = 636^2 + 456^2 .

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 612432.

It is not an unprimeable number, because it can be changed into a prime (612439) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1983 + ... + 2270.

2⁶¹²⁴³² is an apocalyptic number.

It is an amenable number.

612432 is an abundant number, since it is smaller than the sum of its proper divisors (1101930).

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

612432 is a wasteful number, since it uses less digits than its factorization.

612432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4267 (or 4258 counting only the distinct ones).

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

The square root of 612432 is about 782.5803473127. The cubic root of 612432 is about 84.9218196944.

Adding to 612432 its reverse (234216), we get a palindrome (846648).

The spelling of 612432 in words is "six hundred twelve thousand, four hundred thirty-two".