618732 has 48 divisors (see below), whose sum is σ = 1703520. Its totient is φ = 193536.

The previous prime is 618719. The next prime is 618799. The reversal of 618732 is 237816.

618732 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 (27).

It is a junction number, because it is equal to n+sod(n) for n = 618696 and 618705.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 618732.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1668 + ... + 2004.

It is an arithmetic number, because the mean of its divisors is an integer number (35490).

2⁶¹⁸⁷³² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (851760).

618732 is an abundant number, since it is smaller than the sum of its proper divisors (1084788).

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

618732 is a wasteful number, since it uses less digits than its factorization.

618732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 359 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 618732 is about 786.5951944933. The cubic root of 618732 is about 85.2120197285.

The spelling of 618732 in words is "six hundred eighteen thousand, seven hundred thirty-two".