18040526 has 12 divisors (see below), whose sum is σ = 31479048. Its totient is φ = 7731612.

The previous prime is 18040513. The next prime is 18040531. The reversal of 18040526 is 62504081.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 18040495 and 18040504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 91946 + ... + 92141.

It is an arithmetic number, because the mean of its divisors is an integer number (2623254).

Almost surely, 2^18040526 is an apocalyptic number.

18040526 is a deficient number, since it is larger than the sum of its proper divisors (13438522).

18040526 is a wasteful number, since it uses less digits than its factorization.

18040526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184103 (or 184096 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 18040526 is about 4247.4140367993. The cubic root of 18040526 is about 262.2706737876.

The spelling of 18040526 in words is "eighteen million, forty thousand, five hundred twenty-six".