18075419 has 4 divisors (see below), whose sum is σ = 18105240. Its totient is φ = 18045600.

The previous prime is 18075413. The next prime is 18075427. The reversal of 18075419 is 91457081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91457081 = 37 ⋅2471813.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18075419 is a prime.

It is a super-2 number, since 2×18075419² = 653441544051122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18075413) 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, 13982 + ... + 15219.

It is an arithmetic number, because the mean of its divisors is an integer number (4526310).

Almost surely, 2^18075419 is an apocalyptic number.

18075419 is a deficient number, since it is larger than the sum of its proper divisors (29821).

18075419 is an equidigital number, since it uses as much as digits as its factorization.

18075419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29820.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 18075419 is about 4251.5196106804. The cubic root of 18075419 is about 262.4396547604.

The spelling of 18075419 in words is "eighteen million, seventy-five thousand, four hundred nineteen".