222446780 has 24 divisors (see below), whose sum is σ = 467579952. Its totient is φ = 88894592.

The previous prime is 222446761. The next prime is 222446801. The reversal of 222446780 is 87644222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 222446780.

It is a congruent number.

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, 19199 + ... + 28521.

It is an arithmetic number, because the mean of its divisors is an integer number (19482498).

Almost surely, 2^222446780 is an apocalyptic number.

222446780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222446780 is an abundant number, since it is smaller than the sum of its proper divisors (245133172).

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

222446780 is a wasteful number, since it uses less digits than its factorization.

222446780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10525 (or 10523 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 222446780 is about 14914.6498450349. The cubic root of 222446780 is about 605.9108198742.

The spelling of 222446780 in words is "two hundred twenty-two million, four hundred forty-six thousand, seven hundred eighty".