18494011 has 16 divisors (see below), whose sum is σ = 21288960. Its totient is φ = 15949440.

The previous prime is 18493997. The next prime is 18494033. The reversal of 18494011 is 11049481.

It is a cyclic number.

It is not a de Polignac number, because 18494011 - 2⁷ = 18493883 is a prime.

It is a super-3 number, since 3×18494011³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18494051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9090 + ... + 10936.

It is an arithmetic number, because the mean of its divisors is an integer number (1330560).

Almost surely, 2^18494011 is an apocalyptic number.

18494011 is a deficient number, since it is larger than the sum of its proper divisors (2794949).

18494011 is a wasteful number, since it uses less digits than its factorization.

18494011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 18494011 is about 4300.4663700580. The cubic root of 18494011 is about 264.4500806900.

The spelling of 18494011 in words is "eighteen million, four hundred ninety-four thousand, eleven".