18920601 has 16 divisors (see below), whose sum is σ = 32035200. Its totient is φ = 10811664.

The previous prime is 18920569. The next prime is 18920621. The reversal of 18920601 is 10602981.

It is not a de Polignac number, because 18920601 - 2⁵ = 18920569 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (18920621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49866 + ... + 50243.

It is an arithmetic number, because the mean of its divisors is an integer number (2002200).

Almost surely, 2^18920601 is an apocalyptic number.

It is an amenable number.

18920601 is a deficient number, since it is larger than the sum of its proper divisors (13114599).

18920601 is a wasteful number, since it uses less digits than its factorization.

18920601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100125 (or 100119 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 18920601 is about 4349.7817186613. The cubic root of 18920601 is about 266.4679469163.

The spelling of 18920601 in words is "eighteen million, nine hundred twenty thousand, six hundred one".