222331340 has 96 divisors (see below), whose sum is σ = 607509504. Its totient is φ = 66274560.

The previous prime is 222331339. The next prime is 222331367. The reversal of 222331340 is 43133222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32282 + ... + 38558.

It is an arithmetic number, because the mean of its divisors is an integer number (6328224).

Almost surely, 2^222331340 is an apocalyptic number.

222331340 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 222331340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303754752).

222331340 is an abundant number, since it is smaller than the sum of its proper divisors (385178164).

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

222331340 is a wasteful number, since it uses less digits than its factorization.

222331340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6327 (or 6325 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 222331340 is about 14910.7793223560. The cubic root of 222331340 is about 605.8059881354.

Adding to 222331340 its reverse (43133222), we get a palindrome (265464562).

The spelling of 222331340 in words is "two hundred twenty-two million, three hundred thirty-one thousand, three hundred forty".