18077241 has 32 divisors (see below), whose sum is σ = 30965760. Its totient is φ = 9117504.

The previous prime is 18077233. The next prime is 18077291. The reversal of 18077241 is 14277081.

It is not a de Polignac number, because 18077241 - 2³ = 18077233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18077199 and 18077208.

It is not an unprimeable number, because it can be changed into a prime (18077231) 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 31 ways as a sum of consecutive naturals, for example, 4840 + ... + 7718.

It is an arithmetic number, because the mean of its divisors is an integer number (967680).

Almost surely, 2^18077241 is an apocalyptic number.

It is an amenable number.

18077241 is a deficient number, since it is larger than the sum of its proper divisors (12888519).

18077241 is a wasteful number, since it uses less digits than its factorization.

18077241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 18077241 is about 4251.7338816064. The cubic root of 18077241 is about 262.4484724257.

It can be divided in two parts, 180 and 77241, that added together give a triangular number (77421 = T₃₉₃).

The spelling of 18077241 in words is "eighteen million, seventy-seven thousand, two hundred forty-one".