222739200 has 216 divisors, whose sum is σ = 817395600. Its totient is φ = 59351040.

The previous prime is 222739193. The next prime is 222739201. The reversal of 222739200 is 2937222.

It is a tau number, because it is divible by the number of its divisors (216).

It is a super-2 number, since 2×222739200² = 99225502433280000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (222739201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172156 + ... + 173444.

Almost surely, 2^222739200 is an apocalyptic number.

222739200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222739200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408697800).

222739200 is an abundant number, since it is smaller than the sum of its proper divisors (594656400).

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

222739200 is a wasteful number, since it uses less digits than its factorization.

222739200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324 (or 1299 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 222739200 is about 14924.4497386001. The cubic root of 222739200 is about 606.1762059895.

The spelling of 222739200 in words is "two hundred twenty-two million, seven hundred thirty-nine thousand, two hundred".