618432 has 28 divisors (see below), whose sum is σ = 1636776. Its totient is φ = 206080.

The previous prime is 618421. The next prime is 618437. The reversal of 618432 is 234816.

It is a happy number.

618432 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 (24).

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

It is one of the 548 Lynch-Bell numbers.

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 618432.

It is not an unprimeable number, because it can be changed into a prime (618437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1419 + ... + 1802.

2⁶¹⁸⁴³² is an apocalyptic number.

It is an amenable number.

618432 is an abundant number, since it is smaller than the sum of its proper divisors (1018344).

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

618432 is a wasteful number, since it uses less digits than its factorization.

618432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236 (or 3226 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 618432 is about 786.4044760809. The cubic root of 618432 is about 85.1982454619.

It can be divided in two parts, 6184 and 32, that added together give a triangular number (6216 = T₁₁₁).

The spelling of 618432 in words is "six hundred eighteen thousand, four hundred thirty-two".