18264730 has 16 divisors (see below), whose sum is σ = 35865504. Its totient is φ = 6641680.

The previous prime is 18264707. The next prime is 18264767. The reversal of 18264730 is 3746281.

It is a junction number, because it is equal to n+sod(n) for n = 18264692 and 18264701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82912 + ... + 83131.

It is an arithmetic number, because the mean of its divisors is an integer number (2241594).

Almost surely, 2^18264730 is an apocalyptic number.

18264730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18264730 is a deficient number, since it is larger than the sum of its proper divisors (17600774).

18264730 is a wasteful number, since it uses less digits than its factorization.

18264730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166061.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 18264730 is about 4273.7255410239. The cubic root of 18264730 is about 263.3526860032.

It can be divided in two parts, 1826 and 4730, that added together give a palindrome (6556).

The spelling of 18264730 in words is "eighteen million, two hundred sixty-four thousand, seven hundred thirty".