22347040 has 48 divisors (see below), whose sum is σ = 55581120. Its totient is φ = 8467200.

The previous prime is 22347019. The next prime is 22347041. The reversal of 22347040 is 4074322.

It is not an unprimeable number, because it can be changed into a prime (22347041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636 + ... + 6715.

It is an arithmetic number, because the mean of its divisors is an integer number (1157940).

Almost surely, 2^22347040 is an apocalyptic number.

22347040 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 22347040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27790560).

22347040 is an abundant number, since it is smaller than the sum of its proper divisors (33234080).

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

22347040 is a wasteful number, since it uses less digits than its factorization.

22347040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7385 (or 7377 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 22347040 is about 4727.2655944002. The cubic root of 22347040 is about 281.6696162679.

The spelling of 22347040 in words is "twenty-two million, three hundred forty-seven thousand, forty".