22222340 has 24 divisors (see below), whose sum is σ = 53333952. Its totient is φ = 7619040.

The previous prime is 22222331. The next prime is 22222351. The reversal of 22222340 is 4322222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79226 + ... + 79505.

It is an arithmetic number, because the mean of its divisors is an integer number (2222248).

Almost surely, 2^22222340 is an apocalyptic number.

22222340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222340 is an abundant number, since it is smaller than the sum of its proper divisors (31111612).

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

22222340 is a wasteful number, since it uses less digits than its factorization.

22222340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158747 (or 158745 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 22222340 is about 4714.0577001136. The cubic root of 22222340 is about 281.1447184545.

Adding to 22222340 its reverse (4322222), we get a palindrome (26544562).

The spelling of 22222340 in words is "twenty-two million, two hundred twenty-two thousand, three hundred forty".