18222702 has 16 divisors (see below), whose sum is σ = 36501840. Its totient is φ = 6064832.

The previous prime is 18222689. The next prime is 18222703. The reversal of 18222702 is 20722281.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18222703) 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, 2674 + ... + 6602.

It is an arithmetic number, because the mean of its divisors is an integer number (2281365).

Almost surely, 2^18222702 is an apocalyptic number.

18222702 is an abundant number, since it is smaller than the sum of its proper divisors (18279138).

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

18222702 is a wasteful number, since it uses less digits than its factorization.

18222702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4707.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 18222702 is about 4268.8056877773. The cubic root of 18222702 is about 263.1505352454.

Adding to 18222702 its reverse (20722281), we get a palindrome (38944983).

The spelling of 18222702 in words is "eighteen million, two hundred twenty-two thousand, seven hundred two".