18122076 has 48 divisors (see below), whose sum is σ = 53697280. Its totient is φ = 5177520.

The previous prime is 18122059. The next prime is 18122077. The reversal of 18122076 is 67022181.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18122077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11230 + ... + 12741.

Almost surely, 2^18122076 is an apocalyptic number.

It is an amenable number.

18122076 is an abundant number, since it is smaller than the sum of its proper divisors (35575204).

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

18122076 is a wasteful number, since it uses less digits than its factorization.

18122076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23991 (or 23983 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 18122076 is about 4257.0031712462. The cubic root of 18122076 is about 262.6652673561.

Subtracting from 18122076 its sum of digits (27), we obtain a square (18122049 = 4257²).

The spelling of 18122076 in words is "eighteen million, one hundred twenty-two thousand, seventy-six".