18494211 has 16 divisors (see below), whose sum is σ = 25302528. Its totient is φ = 12012000.

The previous prime is 18494183. The next prime is 18494213. The reversal of 18494211 is 11249481.

It is a de Polignac number, because none of the positive numbers 2^k-18494211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18494213) 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, 19846 + ... + 20756.

It is an arithmetic number, because the mean of its divisors is an integer number (1581408).

Almost surely, 2^18494211 is an apocalyptic number.

18494211 is a deficient number, since it is larger than the sum of its proper divisors (6808317).

18494211 is a wasteful number, since it uses less digits than its factorization.

18494211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082.

The product of its digits is 2304, while the sum is 30.

The square root of 18494211 is about 4300.4896232871. The cubic root of 18494211 is about 264.4510339684.

It can be divided in two parts, 184 and 94211, that added together give a triangular number (94395 = T₄₃₄).

The spelling of 18494211 in words is "eighteen million, four hundred ninety-four thousand, two hundred eleven".