222305004 has 18 divisors (see below), whose sum is σ = 561937740. Its totient is φ = 74101656.

The previous prime is 222304987. The next prime is 222305021. The reversal of 222305004 is 400503222.

It is an interprime number because it is at equal distance from previous prime (222304987) and next prime (222305021).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3087534 + ... + 3087605.

Almost surely, 2^222305004 is an apocalyptic number.

It is an amenable number.

222305004 is an abundant number, since it is smaller than the sum of its proper divisors (339632736).

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

222305004 is a wasteful number, since it uses less digits than its factorization.

222305004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6175149 (or 6175144 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 222305004 is about 14909.8961767009. The cubic root of 222305004 is about 605.7820671766.

Adding to 222305004 its reverse (400503222), we get a palindrome (622808226).

The spelling of 222305004 in words is "two hundred twenty-two million, three hundred five thousand, four".