618040 has 16 divisors (see below), whose sum is σ = 1390680. Its totient is φ = 247200.

The previous prime is 618031. The next prime is 618041. The reversal of 618040 is 40816.

618040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 617999 and 618017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618041) by changing a digit.

618040 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, 7686 + ... + 7765.

2⁶¹⁸⁰⁴⁰ is an apocalyptic number.

It is an amenable number.

618040 is an abundant number, since it is smaller than the sum of its proper divisors (772640).

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

618040 is a wasteful number, since it uses less digits than its factorization.

618040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15462 (or 15458 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 618040 is about 786.1552009623. The cubic root of 618040 is about 85.1802403720.

Adding to 618040 its reverse (40816), we get a palindrome (658856).

The spelling of 618040 in words is "six hundred eighteen thousand, forty".