18051276 has 24 divisors (see below), whose sum is σ = 42444864. Its totient is φ = 5970640.

The previous prime is 18051233. The next prime is 18051277. The reversal of 18051276 is 67215081.

It is not an unprimeable number, because it can be changed into a prime (18051277) 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 7 ways as a sum of consecutive naturals, for example, 4170 + ... + 7313.

It is an arithmetic number, because the mean of its divisors is an integer number (1768536).

Almost surely, 2^18051276 is an apocalyptic number.

It is an amenable number.

18051276 is an abundant number, since it is smaller than the sum of its proper divisors (24393588).

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

18051276 is a wasteful number, since it uses less digits than its factorization.

18051276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11621 (or 11619 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 18051276 is about 4248.6793242136. The cubic root of 18051276 is about 262.3227574485.

It can be divided in two parts, 1805 and 1276, that added together give a triangular number (3081 = T₇₈).

The spelling of 18051276 in words is "eighteen million, fifty-one thousand, two hundred seventy-six".