618681042 has 48 divisors (see below), whose sum is σ = 1534079040. Its totient is φ = 176522976.

The previous prime is 618681023. The next prime is 618681047. The reversal of 618681042 is 240186816.

It is a junction number, because it is equal to n+sod(n) for n = 618680988 and 618681006.

It is not an unprimeable number, because it can be changed into a prime (618681047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101493 + ... + 107415.

It is an arithmetic number, because the mean of its divisors is an integer number (31959980).

Almost surely, 2^618681042 is an apocalyptic number.

618681042 is an abundant number, since it is smaller than the sum of its proper divisors (915397998).

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

618681042 is a wasteful number, since it uses less digits than its factorization.

618681042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6767 (or 6764 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 618681042 is about 24873.2997810906. The cubic root of 618681042 is about 852.0968034557.

The spelling of 618681042 in words is "six hundred eighteen million, six hundred eighty-one thousand, forty-two".