22363040 has 96 divisors (see below), whose sum is σ = 61979904. Its totient is φ = 7464960.

The previous prime is 22363013. The next prime is 22363043. The reversal of 22363040 is 4036322.

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 (22363043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45677 + ... + 46163.

It is an arithmetic number, because the mean of its divisors is an integer number (645624).

Almost surely, 2^22363040 is an apocalyptic number.

22363040 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 22363040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30989952).

22363040 is an abundant number, since it is smaller than the sum of its proper divisors (39616864).

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

22363040 is a wasteful number, since it uses less digits than its factorization.

22363040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 22363040 is about 4728.9576018400. The cubic root of 22363040 is about 281.7368233599.

Adding to 22363040 its reverse (4036322), we get a palindrome (26399362).

The spelling of 22363040 in words is "twenty-two million, three hundred sixty-three thousand, forty".