222003400 has 96 divisors (see below), whose sum is σ = 542465280. Its totient is φ = 84384000.

The previous prime is 222003377. The next prime is 222003401. The reversal of 222003400 is 4300222.

It is a super-2 number, since 2×222003400² = 98571019223120000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222003401) 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, 377907 + ... + 378493.

It is an arithmetic number, because the mean of its divisors is an integer number (5650680).

Almost surely, 2^222003400 is an apocalyptic number.

222003400 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 222003400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271232640).

222003400 is an abundant number, since it is smaller than the sum of its proper divisors (320461880).

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

222003400 is a wasteful number, since it uses less digits than its factorization.

222003400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 222003400 is about 14899.7785218439. The cubic root of 222003400 is about 605.5079858015.

Adding to 222003400 its reverse (4300222), we get a palindrome (226303622).

It can be divided in two parts, 22200 and 3400, that added together give a square (25600 = 160²).

The spelling of 222003400 in words is "two hundred twenty-two million, three thousand, four hundred".