22324340 has 24 divisors (see below), whose sum is σ = 48394752. Its totient is φ = 8641440.

The previous prime is 22324339. The next prime is 22324363. The reversal of 22324340 is 4342322.

It is a super-3 number, since 3×22324340³ (a number of 23 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17384 + ... + 18623.

It is an arithmetic number, because the mean of its divisors is an integer number (2016448).

Almost surely, 2^22324340 is an apocalyptic number.

22324340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22324340 is an abundant number, since it is smaller than the sum of its proper divisors (26070412).

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

22324340 is a wasteful number, since it uses less digits than its factorization.

22324340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36047 (or 36045 counting only the distinct ones).

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

The square root of 22324340 is about 4724.8640192073. The cubic root of 22324340 is about 281.5742111423.

Adding to 22324340 its reverse (4342322), we get a palindrome (26666662).

The spelling of 22324340 in words is "twenty-two million, three hundred twenty-four thousand, three hundred forty".