18948512 has 24 divisors (see below), whose sum is σ = 40696992. Its totient is φ = 8612800.

The previous prime is 18948511. The next prime is 18948539. The reversal of 18948512 is 21584981.

It is a super-2 number, since 2×18948512² = 718092214028288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18948511) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 26564 + ... + 27267.

It is an arithmetic number, because the mean of its divisors is an integer number (1695708).

Almost surely, 2^18948512 is an apocalyptic number.

It is an amenable number.

18948512 is an abundant number, since it is smaller than the sum of its proper divisors (21748480).

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

18948512 is a wasteful number, since it uses less digits than its factorization.

18948512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53852 (or 53844 counting only the distinct ones).

The product of its digits is 23040, while the sum is 38.

The square root of 18948512 is about 4352.9888582444. The cubic root of 18948512 is about 266.5989105634.

The spelling of 18948512 in words is "eighteen million, nine hundred forty-eight thousand, five hundred twelve".