43222245040 has 80 divisors (see below), whose sum is σ = 108543865248. Its totient is φ = 15911497728.

The previous prime is 43222244987. The next prime is 43222245043. The reversal of 43222245040 is 4054222234.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (43222245043) 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, 288819 + ... + 412141.

Almost surely, 2^43222245040 is an apocalyptic number.

43222245040 is a gapful number since it is divisible by the number (40) 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 43222245040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54271932624).

43222245040 is an abundant number, since it is smaller than the sum of its proper divisors (65321620208).

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

43222245040 is a wasteful number, since it uses less digits than its factorization.

43222245040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123686 (or 123680 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

Adding to 43222245040 its reverse (4054222234), we get a palindrome (47276467274).

The spelling of 43222245040 in words is "forty-three billion, two hundred twenty-two million, two hundred forty-five thousand, forty".