918329994 has 32 divisors (see below), whose sum is σ = 2052973440. Its totient is φ = 304274016.

The previous prime is 918329989. The next prime is 918330029. The reversal of 918329994 is 499923819.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 918329994.

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, 41899 + ... + 59934.

It is an arithmetic number, because the mean of its divisors is an integer number (64155420).

Almost surely, 2^918329994 is an apocalyptic number.

918329994 is an abundant number, since it is smaller than the sum of its proper divisors (1134643446).

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

918329994 is a wasteful number, since it uses less digits than its factorization.

918329994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102011 (or 102005 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 918329994 is about 30303.9600382524. The cubic root of 918329994 is about 971.9999809480. Note that the first 4 decimals are identical.

Adding to 918329994 its sum of digits (54), we get a cube (918330048 = 972³).

The spelling of 918329994 in words is "nine hundred eighteen million, three hundred twenty-nine thousand, nine hundred ninety-four".