22230040 has 32 divisors (see below), whose sum is σ = 57163680. Its totient is φ = 7621632.

The previous prime is 22230023. The next prime is 22230049. The reversal of 22230040 is 4003222.

It is a self number, because there is not a number n which added to its sum of digits gives 22230040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22230049) 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, 39417 + ... + 39976.

It is an arithmetic number, because the mean of its divisors is an integer number (1786365).

Almost surely, 2^22230040 is an apocalyptic number.

22230040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22230040 is an abundant number, since it is smaller than the sum of its proper divisors (34933640).

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

22230040 is a wasteful number, since it uses less digits than its factorization.

22230040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79411 (or 79407 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 22230040 is about 4714.8743355470. The cubic root of 22230040 is about 281.1771867476.

Adding to 22230040 its reverse (4003222), we get a palindrome (26233262).

The spelling of 22230040 in words is "twenty-two million, two hundred thirty thousand, forty".