18490200 has 48 divisors (see below), whose sum is σ = 57321480. Its totient is φ = 4930560.

The previous prime is 18490189. The next prime is 18490201. The reversal of 18490200 is 209481.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18490201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14809 + ... + 16008.

Almost surely, 2^18490200 is an apocalyptic number.

18490200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18490200 is an abundant number, since it is smaller than the sum of its proper divisors (38831280).

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

18490200 is a wasteful number, since it uses less digits than its factorization.

18490200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30836 (or 30827 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 18490200 is about 4300.0232557511. The cubic root of 18490200 is about 264.4319146561.

Adding to 18490200 its reverse (209481), we get a palindrome (18699681).

The spelling of 18490200 in words is "eighteen million, four hundred ninety thousand, two hundred".