618841232 has 10 divisors (see below), whose sum is σ = 1199004918. Its totient is φ = 309420608.

The previous prime is 618841231. The next prime is 618841247. The reversal of 618841232 is 232148816.

It can be written as a sum of positive squares in only one way, i.e., 339149056 + 279692176 = 18416^2 + 16724^2 .

It is a junction number, because it is equal to n+sod(n) for n = 618841192 and 618841201.

It is not an unprimeable number, because it can be changed into a prime (618841231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19338773 + ... + 19338804.

Almost surely, 2^618841232 is an apocalyptic number.

It is an amenable number.

618841232 is a deficient number, since it is larger than the sum of its proper divisors (580163686).

618841232 is a wasteful number, since it uses less digits than its factorization.

618841232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38677585 (or 38677579 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 618841232 is about 24876.5196922721. The cubic root of 618841232 is about 852.1703392513.

The spelling of 618841232 in words is "six hundred eighteen million, eight hundred forty-one thousand, two hundred thirty-two".