18301772 has 12 divisors (see below), whose sum is σ = 32434080. Its totient is φ = 9034896.

The previous prime is 18301771. The next prime is 18301793. The reversal of 18301772 is 27710381.

It is not an unprimeable number, because it can be changed into a prime (18301771) 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 3 ways as a sum of consecutive naturals, for example, 28643 + ... + 29274.

It is an arithmetic number, because the mean of its divisors is an integer number (2702840).

Almost surely, 2^18301772 is an apocalyptic number.

It is an amenable number.

18301772 is a deficient number, since it is larger than the sum of its proper divisors (14132308).

18301772 is a wasteful number, since it uses less digits than its factorization.

18301772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58000 (or 57998 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 18301772 is about 4278.0570356179. The cubic root of 18301772 is about 263.5305976204.

The spelling of 18301772 in words is "eighteen million, three hundred one thousand, seven hundred seventy-two".