22341840 has 80 divisors (see below), whose sum is σ = 69900288. Its totient is φ = 5902848.

The previous prime is 22341829. The next prime is 22341841. The reversal of 22341840 is 4814322.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 22341840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22341841) 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, 30114 + ... + 30846.

Almost surely, 2^22341840 is an apocalyptic number.

22341840 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 22341840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34950144).

22341840 is an abundant number, since it is smaller than the sum of its proper divisors (47558448).

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

22341840 is a wasteful number, since it uses less digits than its factorization.

22341840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 22341840 is about 4726.7155615713. The cubic root of 22341840 is about 281.6477670562.

The spelling of 22341840 in words is "twenty-two million, three hundred forty-one thousand, eight hundred forty".