369999918 has 12 divisors (see below), whose sum is σ = 801666528. Its totient is φ = 123333300.

The previous prime is 369999899. The next prime is 369999923. The reversal of 369999918 is 819999963.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10277758 + ... + 10277793.

It is an arithmetic number, because the mean of its divisors is an integer number (66805544).

Almost surely, 2^369999918 is an apocalyptic number.

369999918 is an abundant number, since it is smaller than the sum of its proper divisors (431666610).

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

369999918 is a wasteful number, since it uses less digits than its factorization.

369999918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20555559 (or 20555556 counting only the distinct ones).

The product of its digits is 8503056, while the sum is 63.

The square root of 369999918 is about 19235.3819301827. The cubic root of 369999918 is about 717.9053821724.

The spelling of 369999918 in words is "three hundred sixty-nine million, nine hundred ninety-nine thousand, nine hundred eighteen".