18948248 has 32 divisors (see below), whose sum is σ = 38990160. Its totient is φ = 8561280.

The previous prime is 18948221. The next prime is 18948253. The reversal of 18948248 is 84284981.

It is a happy number.

It is a super-2 number, since 2×18948248² = 718072204539008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 18948199 and 18948208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16790 + ... + 17882.

Almost surely, 2^18948248 is an apocalyptic number.

It is an amenable number.

18948248 is an abundant number, since it is smaller than the sum of its proper divisors (20041912).

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

18948248 is a wasteful number, since it uses less digits than its factorization.

18948248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307 (or 1303 counting only the distinct ones).

The product of its digits is 147456, while the sum is 44.

The square root of 18948248 is about 4352.9585341466. The cubic root of 18948248 is about 266.5976724285.

The spelling of 18948248 in words is "eighteen million, nine hundred forty-eight thousand, two hundred forty-eight".