18283922 has 4 divisors (see below), whose sum is σ = 27425886. Its totient is φ = 9141960.

The previous prime is 18283913. The next prime is 18283927. The reversal of 18283922 is 22938281.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14753281 + 3530641 = 3841^2 + 1879^2 .

It is not an unprimeable number, because it can be changed into a prime (18283927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4570979 + ... + 4570982.

Almost surely, 2^18283922 is an apocalyptic number.

18283922 is a deficient number, since it is larger than the sum of its proper divisors (9141964).

18283922 is an equidigital number, since it uses as much as digits as its factorization.

18283922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9141963.

The product of its digits is 13824, while the sum is 35.

The square root of 18283922 is about 4275.9702992420. The cubic root of 18283922 is about 263.4448946022. Note that the first 3 decimals are identical.

The spelling of 18283922 in words is "eighteen million, two hundred eighty-three thousand, nine hundred twenty-two".