22035325440 has 160 divisors (see below), whose sum is σ = 71070379776. Its totient is φ = 5823856640.

The previous prime is 22035325399. The next prime is 22035325457. The reversal of 22035325440 is 4452353022.

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

It is a super-2 number, since 2×22035325440² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22035325398 and 22035325407.

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, 855145 + ... + 880535.

Almost surely, 2^22035325440 is an apocalyptic number.

22035325440 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 22035325440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35535189888).

22035325440 is an abundant number, since it is smaller than the sum of its proper divisors (49035054336).

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

22035325440 is a wasteful number, since it uses less digits than its factorization.

22035325440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25530 (or 25514 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 22035325440 its reverse (4452353022), we get a palindrome (26487678462).

The spelling of 22035325440 in words is "twenty-two billion, thirty-five million, three hundred twenty-five thousand, four hundred forty".