22410021440 has 112 divisors (see below), whose sum is σ = 55368474480. Its totient is φ = 8629125120.

The previous prime is 22410021437. The next prime is 22410021451. The reversal of 22410021440 is 4412001422.

It can be written as a sum of positive squares in 8 ways, for example, as 20286016 + 22389735424 = 4504^2 + 149632^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 3272420 + ... + 3279260.

Almost surely, 2^22410021440 is an apocalyptic number.

22410021440 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 22410021440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27684237240).

22410021440 is an abundant number, since it is smaller than the sum of its proper divisors (32958453040).

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

22410021440 is a wasteful number, since it uses less digits than its factorization.

22410021440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7240 (or 7230 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22410021440 its reverse (4412001422), we get a palindrome (26822022862).

The spelling of 22410021440 in words is "twenty-two billion, four hundred ten million, twenty-one thousand, four hundred forty".