222738860 has 24 divisors (see below), whose sum is σ = 476579376. Its totient is φ = 87414080.

The previous prime is 222738833. The next prime is 222738863. The reversal of 222738860 is 68837222.

222738860 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×222738860² = 99225199508199200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222738863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104006 + ... + 106125.

It is an arithmetic number, because the mean of its divisors is an integer number (19857474).

Almost surely, 2^222738860 is an apocalyptic number.

222738860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222738860 is an abundant number, since it is smaller than the sum of its proper divisors (253840516).

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

222738860 is a wasteful number, since it uses less digits than its factorization.

222738860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210193 (or 210191 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 222738860 is about 14924.4383478910. The cubic root of 222738860 is about 606.1758975570.

The spelling of 222738860 in words is "two hundred twenty-two million, seven hundred thirty-eight thousand, eight hundred sixty".