22346240 has 160 divisors (see below), whose sum is σ = 64817280. Its totient is φ = 7225344.

The previous prime is 22346239. The next prime is 22346251. The reversal of 22346240 is 4264322.

It is a tau number, because it is divible by the number of its divisors (160).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519659 + ... + 519701.

It is an arithmetic number, because the mean of its divisors is an integer number (405108).

Almost surely, 2^22346240 is an apocalyptic number.

22346240 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 22346240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32408640).

22346240 is an abundant number, since it is smaller than the sum of its proper divisors (42471040).

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

22346240 is an equidigital number, since it uses as much as digits as its factorization.

22346240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 22346240 is about 4727.1809781306. The cubic root of 22346240 is about 281.6662550714. Note that the first 3 decimals are identical.

The spelling of 22346240 in words is "twenty-two million, three hundred forty-six thousand, two hundred forty".