222468687 has 24 divisors (see below), whose sum is σ = 380854656. Its totient is φ = 127123992.

The previous prime is 222468677. The next prime is 222468689. The reversal of 222468687 is 786864222.

222468687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222468687 - 2¹⁴ = 222452303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222468689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63693 + ... + 67094.

It is an arithmetic number, because the mean of its divisors is an integer number (15868944).

Almost surely, 2^222468687 is an apocalyptic number.

222468687 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

222468687 is a deficient number, since it is larger than the sum of its proper divisors (158385969).

222468687 is an equidigital number, since it uses as much as digits as its factorization.

222468687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130809 (or 130797 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 222468687 is about 14915.3842391002. The cubic root of 222468687 is about 605.9307096543.

The spelling of 222468687 in words is "two hundred twenty-two million, four hundred sixty-eight thousand, six hundred eighty-seven".