222230540 has 24 divisors (see below), whose sum is σ = 533353632. Its totient is φ = 76193280.

The previous prime is 222230539. The next prime is 222230551. The reversal of 222230540 is 45032222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793541 + ... + 793820.

It is an arithmetic number, because the mean of its divisors is an integer number (22223068).

Almost surely, 2^222230540 is an apocalyptic number.

222230540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222230540 is an abundant number, since it is smaller than the sum of its proper divisors (311123092).

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

222230540 is a wasteful number, since it uses less digits than its factorization.

222230540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587377 (or 1587375 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 222230540 is about 14907.3988341360. The cubic root of 222230540 is about 605.7144213857.

Adding to 222230540 its reverse (45032222), we get a palindrome (267262762).

The spelling of 222230540 in words is "two hundred twenty-two million, two hundred thirty thousand, five hundred forty".