222496340 has 96 divisors (see below), whose sum is σ = 553246848. Its totient is φ = 74240000.

The previous prime is 222496303. The next prime is 222496343. The reversal of 222496340 is 43694222.

It is a junction number, because it is equal to n+sod(n) for n = 222496297 and 222496306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222496343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152615 + ... + 154065.

It is an arithmetic number, because the mean of its divisors is an integer number (5762988).

Almost surely, 2^222496340 is an apocalyptic number.

222496340 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 222496340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276623424).

222496340 is an abundant number, since it is smaller than the sum of its proper divisors (330750508).

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

222496340 is a wasteful number, since it uses less digits than its factorization.

222496340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529 (or 1527 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 222496340 is about 14916.3112061930. The cubic root of 222496340 is about 605.9558144723.

The spelling of 222496340 in words is "two hundred twenty-two million, four hundred ninety-six thousand, three hundred forty".