618237256 has 64 divisors (see below), whose sum is σ = 1432569600. Its totient is φ = 243571968.

The previous prime is 618237241. The next prime is 618237259. The reversal of 618237256 is 652732816.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (618237259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189850 + ... + 193078.

It is an arithmetic number, because the mean of its divisors is an integer number (22383900).

Almost surely, 2^618237256 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 618237256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (716284800).

618237256 is an abundant number, since it is smaller than the sum of its proper divisors (814332344).

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

618237256 is a wasteful number, since it uses less digits than its factorization.

618237256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3518 (or 3514 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 618237256 is about 24864.3772493903. The cubic root of 618237256 is about 851.8930155806.

The spelling of 618237256 in words is "six hundred eighteen million, two hundred thirty-seven thousand, two hundred fifty-six".