18272010 has 16 divisors (see below), whose sum is σ = 43852896. Its totient is φ = 4872528.

The previous prime is 18271963. The next prime is 18272017. The reversal of 18272010 is 1027281.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18272017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304504 + ... + 304563.

It is an arithmetic number, because the mean of its divisors is an integer number (2740806).

Almost surely, 2^18272010 is an apocalyptic number.

18272010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18272010 is an abundant number, since it is smaller than the sum of its proper divisors (25580886).

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

18272010 is a wasteful number, since it uses less digits than its factorization.

18272010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609077.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 18272010 is about 4274.5771720721. The cubic root of 18272010 is about 263.3876706044.

Adding to 18272010 its reverse (1027281), we get a palindrome (19299291).

The spelling of 18272010 in words is "eighteen million, two hundred seventy-two thousand, ten".