918429994 has 16 divisors (see below), whose sum is σ = 1429549056. Its totient is φ = 442069200.

The previous prime is 918429979. The next prime is 918430001. The reversal of 918429994 is 499924819.

918429994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26937 + ... + 50620.

It is an arithmetic number, because the mean of its divisors is an integer number (89346816).

Almost surely, 2^918429994 is an apocalyptic number.

918429994 is a deficient number, since it is larger than the sum of its proper divisors (511119062).

918429994 is a wasteful number, since it uses less digits than its factorization.

918429994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77781.

The product of its digits is 1679616, while the sum is 55.

The square root of 918429994 is about 30305.6099427152. The cubic root of 918429994 is about 972.0352611018.

The spelling of 918429994 in words is "nine hundred eighteen million, four hundred twenty-nine thousand, nine hundred ninety-four".