18868045 has 32 divisors (see below), whose sum is σ = 28857600. Its totient is φ = 11529216.

The previous prime is 18868043. The next prime is 18868049. The reversal of 18868045 is 54086881.

It is a cyclic number.

It is not a de Polignac number, because 18868045 - 2¹ = 18868043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18867989 and 18868007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18868043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10471 + ... + 12139.

It is an arithmetic number, because the mean of its divisors is an integer number (901800).

Almost surely, 2^18868045 is an apocalyptic number.

It is an amenable number.

18868045 is a deficient number, since it is larger than the sum of its proper divisors (9989555).

18868045 is a wasteful number, since it uses less digits than its factorization.

18868045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717.

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 18868045 is about 4343.7362949424. The cubic root of 18868045 is about 266.2209942907.

The spelling of 18868045 in words is "eighteen million, eight hundred sixty-eight thousand, forty-five".