22234340 has 48 divisors (see below), whose sum is σ = 48124272. Its totient is φ = 8626176.

The previous prime is 22234321. The next prime is 22234343. The reversal of 22234340 is 4343222.

It can be written as a sum of positive squares in 8 ways, for example, as 630436 + 21603904 = 794^2 + 4648^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22234343) 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 15 ways as a sum of consecutive naturals, for example, 141542 + ... + 141698.

It is an arithmetic number, because the mean of its divisors is an integer number (1002589).

Almost surely, 2^22234340 is an apocalyptic number.

22234340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22234340 is an abundant number, since it is smaller than the sum of its proper divisors (25889932).

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

22234340 is a wasteful number, since it uses less digits than its factorization.

22234340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 22234340 is about 4715.3303171676. The cubic root of 22234340 is about 281.1953151293.

Adding to 22234340 its reverse (4343222), we get a palindrome (26577562).

The spelling of 22234340 in words is "twenty-two million, two hundred thirty-four thousand, three hundred forty".