18468038 has 12 divisors (see below), whose sum is σ = 29237940. Its totient is φ = 8747676.

The previous prime is 18468031. The next prime is 18468049. The reversal of 18468038 is 83086481.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18467992 and 18468010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18468031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12068 + ... + 13511.

It is an arithmetic number, because the mean of its divisors is an integer number (2436495).

Almost surely, 2^18468038 is an apocalyptic number.

18468038 is a deficient number, since it is larger than the sum of its proper divisors (10769902).

18468038 is a wasteful number, since it uses less digits than its factorization.

18468038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25619 (or 25600 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 18468038 is about 4297.4455203062. The cubic root of 18468038 is about 264.3262247408.

The spelling of 18468038 in words is "eighteen million, four hundred sixty-eight thousand, thirty-eight".