18926745 has 16 divisors (see below), whose sum is σ = 30472512. Its totient is φ = 10031040.

The previous prime is 18926731. The next prime is 18926753. The reversal of 18926745 is 54762981.

It is not a de Polignac number, because 18926745 - 2⁶ = 18926681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18926697 and 18926706.

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, 1426 + ... + 6315.

It is an arithmetic number, because the mean of its divisors is an integer number (1904532).

Almost surely, 2^18926745 is an apocalyptic number.

18926745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18926745 is a deficient number, since it is larger than the sum of its proper divisors (11545767).

18926745 is a wasteful number, since it uses less digits than its factorization.

18926745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7912.

The product of its digits is 120960, while the sum is 42.

The square root of 18926745 is about 4350.4879036724. The cubic root of 18926745 is about 266.4967867663.

The spelling of 18926745 in words is "eighteen million, nine hundred twenty-six thousand, seven hundred forty-five".