222240764 has 6 divisors (see below), whose sum is σ = 388921344. Its totient is φ = 111120380.

The previous prime is 222240719. The next prime is 222240773. The reversal of 222240764 is 467042222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27780092 + ... + 27780099.

It is an arithmetic number, because the mean of its divisors is an integer number (64820224).

Almost surely, 2^222240764 is an apocalyptic number.

It is an amenable number.

222240764 is a deficient number, since it is larger than the sum of its proper divisors (166680580).

222240764 is a wasteful number, since it uses less digits than its factorization.

222240764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55560195 (or 55560193 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 222240764 is about 14907.7417471594. The cubic root of 222240764 is about 605.7237101320.

Adding to 222240764 its reverse (467042222), we get a palindrome (689282986).

The spelling of 222240764 in words is "two hundred twenty-two million, two hundred forty thousand, seven hundred sixty-four".