618632112 has 80 divisors (see below), whose sum is σ = 1860952320. Its totient is φ = 173412096.

The previous prime is 618632101. The next prime is 618632123. The reversal of 618632112 is 211236816.

It is an interprime number because it is at equal distance from previous prime (618632101) and next prime (618632123).

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

It is a self number, because there is not a number n which added to its sum of digits gives 618632112.

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, 439 + ... + 35177.

It is an arithmetic number, because the mean of its divisors is an integer number (23261904).

Almost surely, 2^618632112 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 618632112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (930476160).

618632112 is an abundant number, since it is smaller than the sum of its proper divisors (1242320208).

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

618632112 is a wasteful number, since it uses less digits than its factorization.

618632112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34810 (or 34804 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 618632112 is about 24872.3161768260. The cubic root of 618632112 is about 852.0743394325.

Adding to 618632112 its reverse (211236816), we get a palindrome (829868928).

The spelling of 618632112 in words is "six hundred eighteen million, six hundred thirty-two thousand, one hundred twelve".