222780936 has 64 divisors (see below), whose sum is σ = 651340800. Its totient is φ = 62169408.

The previous prime is 222780931. The next prime is 222780941. The reversal of 222780936 is 639087222.

It is an interprime number because it is at equal distance from previous prime (222780931) and next prime (222780941).

It is a junction number, because it is equal to n+sod(n) for n = 222780894 and 222780903.

It is not an unprimeable number, because it can be changed into a prime (222780931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8196 + ... + 22643.

It is an arithmetic number, because the mean of its divisors is an integer number (10177200).

Almost surely, 2^222780936 is an apocalyptic number.

It is an amenable number.

222780936 is an abundant number, since it is smaller than the sum of its proper divisors (428559864).

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

222780936 is a wasteful number, since it uses less digits than its factorization.

222780936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30898 (or 30894 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 222780936 is about 14925.8479156127. The cubic root of 222780936 is about 606.2140646004.

The spelling of 222780936 in words is "two hundred twenty-two million, seven hundred eighty thousand, nine hundred thirty-six".