43402122240 has 176 divisors, whose sum is σ = 142049485248. Its totient is φ = 11304566784.

The previous prime is 43402122233. The next prime is 43402122241. The reversal of 43402122240 is 4222120434.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 43402122240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43402122241) 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, 627624 + ... + 693336.

It is an arithmetic number, because the mean of its divisors is an integer number (807099348).

Almost surely, 2^43402122240 is an apocalyptic number.

43402122240 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 43402122240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71024742624).

43402122240 is an abundant number, since it is smaller than the sum of its proper divisors (98647363008).

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

43402122240 is a wasteful number, since it uses less digits than its factorization.

43402122240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65784 (or 65766 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 43402122240 its reverse (4222120434), we get a palindrome (47624242674).

The spelling of 43402122240 in words is "forty-three billion, four hundred two million, one hundred twenty-two thousand, two hundred forty".