18222032 has 40 divisors (see below), whose sum is σ = 36456000. Its totient is φ = 8819712.

The previous prime is 18222031. The next prime is 18222037. The reversal of 18222032 is 23022281.

It is a junction number, because it is equal to n+sod(n) for n = 18221995 and 18222013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18222031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91469 + ... + 91667.

It is an arithmetic number, because the mean of its divisors is an integer number (911400).

Almost surely, 2^18222032 is an apocalyptic number.

It is an amenable number.

18222032 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

18222032 is a wasteful number, since it uses less digits than its factorization.

18222032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 18222032 is about 4268.7272107737. The cubic root of 18222032 is about 263.1473100922.

The spelling of 18222032 in words is "eighteen million, two hundred twenty-two thousand, thirty-two".