18861848 has 8 divisors (see below), whose sum is σ = 35365980. Its totient is φ = 9430920.

The previous prime is 18861827. The next prime is 18861881. The reversal of 18861848 is 84816881.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 18861799 and 18861808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1178858 + ... + 1178873.

Almost surely, 2^18861848 is an apocalyptic number.

It is an amenable number.

18861848 is a deficient number, since it is larger than the sum of its proper divisors (16504132).

18861848 is a wasteful number, since it uses less digits than its factorization.

18861848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357737 (or 2357733 counting only the distinct ones).

The product of its digits is 98304, while the sum is 44.

The square root of 18861848 is about 4343.0229103701. The cubic root of 18861848 is about 266.1918453222.

The spelling of 18861848 in words is "eighteen million, eight hundred sixty-one thousand, eight hundred forty-eight".