18040695 has 16 divisors (see below), whose sum is σ = 28920192. Its totient is φ = 9603360.

The previous prime is 18040691. The next prime is 18040703. The reversal of 18040695 is 59604081.

It is not a de Polignac number, because 18040695 - 2² = 18040691 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18040691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11424 + ... + 12906.

It is an arithmetic number, because the mean of its divisors is an integer number (1807512).

Almost surely, 2^18040695 is an apocalyptic number.

18040695 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18040695 is a deficient number, since it is larger than the sum of its proper divisors (10879497).

18040695 is a wasteful number, since it uses less digits than its factorization.

18040695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 18040695 is about 4247.4339312107. The cubic root of 18040695 is about 262.2714927513.

The spelling of 18040695 in words is "eighteen million, forty thousand, six hundred ninety-five".