18254452 has 12 divisors (see below), whose sum is σ = 31997476. Its totient is φ = 9112320.

The previous prime is 18254449. The next prime is 18254461. The reversal of 18254452 is 25445281.

It can be written as a sum of positive squares in 2 ways, for example, as 6937956 + 11316496 = 2634^2 + 3364^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699 + ... + 6082.

Almost surely, 2^18254452 is an apocalyptic number.

It is an amenable number.

18254452 is a deficient number, since it is larger than the sum of its proper divisors (13743024).

18254452 is a wasteful number, since it uses less digits than its factorization.

18254452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7458 (or 7456 counting only the distinct ones).

The product of its digits is 12800, while the sum is 31.

The square root of 18254452 is about 4272.5229080720. The cubic root of 18254452 is about 263.3032784514.

The spelling of 18254452 in words is "eighteen million, two hundred fifty-four thousand, four hundred fifty-two".