18816794 has 8 divisors (see below), whose sum is σ = 28988148. Its totient is φ = 9154080.

The previous prime is 18816793. The next prime is 18816823. The reversal of 18816794 is 49761881.

It can be written as a sum of positive squares in 2 ways, for example, as 18809569 + 7225 = 4337^2 + 85^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18816793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127067 + ... + 127214.

Almost surely, 2^18816794 is an apocalyptic number.

18816794 is a deficient number, since it is larger than the sum of its proper divisors (10171354).

18816794 is a wasteful number, since it uses less digits than its factorization.

18816794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254320.

The product of its digits is 96768, while the sum is 44.

The square root of 18816794 is about 4337.8328690718. The cubic root of 18816794 is about 265.9797316232.

The spelling of 18816794 in words is "eighteen million, eight hundred sixteen thousand, seven hundred ninety-four".