18743056 has 20 divisors (see below), whose sum is σ = 36409500. Its totient is φ = 9347072.

The previous prime is 18743051. The next prime is 18743069. The reversal of 18743056 is 65034781.

It can be written as a sum of positive squares in 2 ways, for example, as 10240000 + 8503056 = 3200^2 + 2916^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18743051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5880 + ... + 8488.

It is an arithmetic number, because the mean of its divisors is an integer number (1820475).

Almost surely, 2^18743056 is an apocalyptic number.

18743056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18743056 is a deficient number, since it is larger than the sum of its proper divisors (17666444).

18743056 is a wasteful number, since it uses less digits than its factorization.

18743056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066 (or 3060 counting only the distinct ones).

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

The square root of 18743056 is about 4329.3251206164. The cubic root of 18743056 is about 265.6318422413.

The spelling of 18743056 in words is "eighteen million, seven hundred forty-three thousand, fifty-six".