361799918 has 16 divisors (see below), whose sum is σ = 552530160. Its totient is φ = 177630336.

The previous prime is 361799909. The next prime is 361799927. The reversal of 361799918 is 819997163.

It is an interprime number because it is at equal distance from previous prime (361799909) and next prime (361799927).

It is a self number, because there is not a number n which added to its sum of digits gives 361799918.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 192230 + ... + 194102.

It is an arithmetic number, because the mean of its divisors is an integer number (34533135).

Almost surely, 2^361799918 is an apocalyptic number.

361799918 is a deficient number, since it is larger than the sum of its proper divisors (190730242).

361799918 is a wasteful number, since it uses less digits than its factorization.

361799918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571.

The product of its digits is 734832, while the sum is 53.

The square root of 361799918 is about 19021.0388254690. The cubic root of 361799918 is about 712.5622675857.

The spelling of 361799918 in words is "three hundred sixty-one million, seven hundred ninety-nine thousand, nine hundred eighteen".