18072411 has 64 divisors (see below), whose sum is σ = 31850496. Its totient is φ = 8870400.

The previous prime is 18072403. The next prime is 18072421. The reversal of 18072411 is 11427081.

It is not a de Polignac number, because 18072411 - 2³ = 18072403 is a prime.

It is a super-2 number, since 2×18072411² = 653224078705842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18072421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 254506 + ... + 254576.

It is an arithmetic number, because the mean of its divisors is an integer number (497664).

Almost surely, 2^18072411 is an apocalyptic number.

18072411 is a deficient number, since it is larger than the sum of its proper divisors (13778085).

18072411 is a wasteful number, since it uses less digits than its factorization.

18072411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 18072411 is about 4251.1658400961. The cubic root of 18072411 is about 262.4250960887.

Adding to 18072411 its reverse (11427081), we get a palindrome (29499492).

The spelling of 18072411 in words is "eighteen million, seventy-two thousand, four hundred eleven".