18354736 has 20 divisors (see below), whose sum is σ = 37109232. Its totient is φ = 8778176.

The previous prime is 18354731. The next prime is 18354761. The reversal of 18354736 is 63745381.

It is a junction number, because it is equal to n+sod(n) for n = 18354695 and 18354704.

It is not an unprimeable number, because it can be changed into a prime (18354731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24571 + ... + 25306.

Almost surely, 2^18354736 is an apocalyptic number.

18354736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18354736 is an abundant number, since it is smaller than the sum of its proper divisors (18754496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18354736 is a wasteful number, since it uses less digits than its factorization.

18354736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49908 (or 49902 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 18354736 is about 4284.2427568942. The cubic root of 18354736 is about 263.7845655978.

The spelling of 18354736 in words is "eighteen million, three hundred fifty-four thousand, seven hundred thirty-six".