18910914 has 32 divisors (see below), whose sum is σ = 41428800. Its totient is φ = 5707200.

The previous prime is 18910907. The next prime is 18910943. The reversal of 18910914 is 41901981.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 22624 + ... + 23444.

It is an arithmetic number, because the mean of its divisors is an integer number (1294650).

Almost surely, 2^18910914 is an apocalyptic number.

18910914 is an abundant number, since it is smaller than the sum of its proper divisors (22517886).

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

18910914 is a wasteful number, since it uses less digits than its factorization.

18910914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186.

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 18910914 is about 4348.6680719503. The cubic root of 18910914 is about 266.4224635893.

The spelling of 18910914 in words is "eighteen million, nine hundred ten thousand, nine hundred fourteen".