618532 has 12 divisors (see below), whose sum is σ = 1088640. Its totient is φ = 307496.

The previous prime is 618521. The next prime is 618547. The reversal of 618532 is 235816.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 618497 and 618506.

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 3 ways as a sum of consecutive naturals, for example, 633 + ... + 1279.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

2⁶¹⁸⁵³² is an apocalyptic number.

It is an amenable number.

618532 is a deficient number, since it is larger than the sum of its proper divisors (470108).

618532 is a wasteful number, since it uses less digits than its factorization.

618532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890 (or 888 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 618532 is about 786.4680540238. The cubic root of 618532 is about 85.2028373790.

The spelling of 618532 in words is "six hundred eighteen thousand, five hundred thirty-two".