18678045 has 16 divisors (see below), whose sum is σ = 31458240. Its totient is φ = 9437184.

The previous prime is 18677993. The next prime is 18678061. The reversal of 18678045 is 54087681.

It is not a de Polignac number, because 18678045 - 2¹³ = 18669853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18677994 and 18678012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32484 + ... + 33053.

It is an arithmetic number, because the mean of its divisors is an integer number (1966140).

Almost surely, 2^18678045 is an apocalyptic number.

18678045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18678045 is a deficient number, since it is larger than the sum of its proper divisors (12780195).

18678045 is a wasteful number, since it uses less digits than its factorization.

18678045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65564.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 18678045 is about 4321.8103845495. The cubic root of 18678045 is about 265.3243684350.

The spelling of 18678045 in words is "eighteen million, six hundred seventy-eight thousand, forty-five".