18240794 has 64 divisors (see below), whose sum is σ = 34836480. Its totient is φ = 7043520.

The previous prime is 18240793. The next prime is 18240829. The reversal of 18240794 is 49704281.

It is not an unprimeable number, because it can be changed into a prime (18240791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309137 + ... + 309195.

It is an arithmetic number, because the mean of its divisors is an integer number (544320).

Almost surely, 2^18240794 is an apocalyptic number.

18240794 is a deficient number, since it is larger than the sum of its proper divisors (16595686).

18240794 is a wasteful number, since it uses less digits than its factorization.

18240794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 18240794 is about 4270.9242559427. The cubic root of 18240794 is about 263.2375941379.

The spelling of 18240794 in words is "eighteen million, two hundred forty thousand, seven hundred ninety-four".