18672202 has 16 divisors (see below), whose sum is σ = 28648800. Its totient is φ = 9124560.

The previous prime is 18672187. The next prime is 18672221. The reversal of 18672202 is 20227681.

It is a super-2 number, since 2×18672202² = 697302255057608, which contains 22 as substring.

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, 26677 + ... + 27367.

It is an arithmetic number, because the mean of its divisors is an integer number (1790550).

Almost surely, 2^18672202 is an apocalyptic number.

18672202 is a deficient number, since it is larger than the sum of its proper divisors (9976598).

18672202 is a wasteful number, since it uses less digits than its factorization.

18672202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 18672202 is about 4321.1343418135. The cubic root of 18672202 is about 265.2966986589.

Adding to 18672202 its reverse (20227681), we get a palindrome (38899883).

It can be divided in two parts, 18 and 672202, that added together give a triangular number (672220 = T₁₁₅₉).

The spelling of 18672202 in words is "eighteen million, six hundred seventy-two thousand, two hundred two".