18419061 has 4 divisors (see below), whose sum is σ = 24558752. Its totient is φ = 12279372.

The previous prime is 18419059. The next prime is 18419069. The reversal of 18419061 is 16091481.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 18419061 - 2¹ = 18419059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18419069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3069841 + ... + 3069846.

It is an arithmetic number, because the mean of its divisors is an integer number (6139688).

Almost surely, 2^18419061 is an apocalyptic number.

It is an amenable number.

18419061 is a deficient number, since it is larger than the sum of its proper divisors (6139691).

18419061 is an equidigital number, since it uses as much as digits as its factorization.

18419061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6139690.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 18419061 is about 4291.7433520657. The cubic root of 18419061 is about 264.0923546255.

The spelling of 18419061 in words is "eighteen million, four hundred nineteen thousand, sixty-one".