43222154340 has 96 divisors (see below), whose sum is σ = 125113887360. Its totient is φ = 11141738496.

The previous prime is 43222154329. The next prime is 43222154347. The reversal of 43222154340 is 4345122234.

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 = 43222154298 and 43222154307.

It is not an unprimeable number, because it can be changed into a prime (43222154347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163906 + ... + 336614.

It is an arithmetic number, because the mean of its divisors is an integer number (1303269660).

Almost surely, 2^43222154340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43222154340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62556943680).

43222154340 is an abundant number, since it is smaller than the sum of its proper divisors (81891733020).

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

43222154340 is a wasteful number, since it uses less digits than its factorization.

43222154340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172861 (or 172859 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 43222154340 its reverse (4345122234), we get a palindrome (47567276574).

The spelling of 43222154340 in words is "forty-three billion, two hundred twenty-two million, one hundred fifty-four thousand, three hundred forty".