18498948 has 24 divisors (see below), whose sum is σ = 46484928. Its totient is φ = 5691936.

The previous prime is 18498943. The next prime is 18498959. The reversal of 18498948 is 84989481.

It is a super-2 number, since 2×18498948² = 684422154213408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18498948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18498943) 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, 59136 + ... + 59447.

It is an arithmetic number, because the mean of its divisors is an integer number (1936872).

Almost surely, 2^18498948 is an apocalyptic number.

It is an amenable number.

18498948 is an abundant number, since it is smaller than the sum of its proper divisors (27985980).

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

18498948 is a wasteful number, since it uses less digits than its factorization.

18498948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118603 (or 118601 counting only the distinct ones).

The product of its digits is 663552, while the sum is 51.

The square root of 18498948 is about 4301.0403392668. The cubic root of 18498948 is about 264.4736103593.

The spelling of 18498948 in words is "eighteen million, four hundred ninety-eight thousand, nine hundred forty-eight".