18241441 has 3 divisors (see below), whose sum is σ = 18245713. Its totient is φ = 18237170.

The previous prime is 18241439. The next prime is 18241451. The reversal of 18241441 is 14414281.

The square root of 18241441 is 4271.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 18241441 - 2¹ = 18241439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18241451) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2136 + ... + 6406.

Almost surely, 2^18241441 is an apocalyptic number.

18241441 is the 4271-st square number.

18241441 is the 2136-th centered octagonal number.

It is an amenable number.

18241441 is a deficient number, since it is larger than the sum of its proper divisors (4272).

18241441 is an frugal number, since it uses more digits than its factorization.

18241441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8542 (or 4271 counting only the distinct ones).

The product of its digits is 1024, while the sum is 25.

The cubic root of 18241441 is about 263.2407064423.

Multiplying 18241441 by its sum of digits (25), we get a square (456036025 = 21355²).

Multiplying 18241441 by its product of digits (1024), we get a square (18679235584 = 136672²).

The spelling of 18241441 in words is "eighteen million, two hundred forty-one thousand, four hundred forty-one".