18222476 has 6 divisors (see below), whose sum is σ = 31889340. Its totient is φ = 9111236.

The previous prime is 18222473. The next prime is 18222541. The reversal of 18222476 is 67422281.

It is a super-3 number, since 3×18222476³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (18222473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2277806 + ... + 2277813.

It is an arithmetic number, because the mean of its divisors is an integer number (5314890).

Almost surely, 2^18222476 is an apocalyptic number.

It is an amenable number.

18222476 is a deficient number, since it is larger than the sum of its proper divisors (13666864).

18222476 is a wasteful number, since it uses less digits than its factorization.

18222476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4555623 (or 4555621 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 18222476 is about 4268.7792165911. The cubic root of 18222476 is about 263.1494473667.

The spelling of 18222476 in words is "eighteen million, two hundred twenty-two thousand, four hundred seventy-six".