18740365 has 16 divisors (see below), whose sum is σ = 27054720. Its totient is φ = 12173760.

The previous prime is 18740363. The next prime is 18740411. The reversal of 18740365 is 56304781.

It is not a de Polignac number, because 18740365 - 2¹ = 18740363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18740365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18740363) 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, 13426 + ... + 14755.

It is an arithmetic number, because the mean of its divisors is an integer number (1690920).

Almost surely, 2^18740365 is an apocalyptic number.

It is an amenable number.

18740365 is a deficient number, since it is larger than the sum of its proper divisors (8314355).

18740365 is a wasteful number, since it uses less digits than its factorization.

18740365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28212.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 18740365 is about 4329.0143219906. The cubic root of 18740365 is about 265.6191290975.

The spelling of 18740365 in words is "eighteen million, seven hundred forty thousand, three hundred sixty-five".