18498244 has 24 divisors (see below), whose sum is σ = 34473600. Its totient is φ = 8654976.

The previous prime is 18498241. The next prime is 18498247. The reversal of 18498244 is 44289481.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18498241) and next prime (18498247).

It is a junction number, because it is equal to n+sod(n) for n = 18498197 and 18498206.

It is not an unprimeable number, because it can be changed into a prime (18498241) 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, 12849 + ... + 14215.

It is an arithmetic number, because the mean of its divisors is an integer number (1436400).

Almost surely, 2^18498244 is an apocalyptic number.

It is an amenable number.

18498244 is a deficient number, since it is larger than the sum of its proper divisors (15975356).

18498244 is a wasteful number, since it uses less digits than its factorization.

18498244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587 (or 1585 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 18498244 is about 4300.9584978235. The cubic root of 18498244 is about 264.4702553616.

The spelling of 18498244 in words is "eighteen million, four hundred ninety-eight thousand, two hundred forty-four".