18057441 has 8 divisors (see below), whose sum is σ = 24131104. Its totient is φ = 12011040.

The previous prime is 18057437. The next prime is 18057449. The reversal of 18057441 is 14475081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18057441 - 2² = 18057437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18057399 and 18057408.

It is not an unprimeable number, because it can be changed into a prime (18057449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5215 + ... + 7956.

It is an arithmetic number, because the mean of its divisors is an integer number (3016388).

Almost surely, 2^18057441 is an apocalyptic number.

It is an amenable number.

18057441 is a deficient number, since it is larger than the sum of its proper divisors (6073663).

18057441 is a wasteful number, since it uses less digits than its factorization.

18057441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13631.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 18057441 is about 4249.4047818489. The cubic root of 18057441 is about 262.3526174933.

The spelling of 18057441 in words is "eighteen million, fifty-seven thousand, four hundred forty-one".