43424442432 has 168 divisors, whose sum is σ = 142422286656. Its totient is φ = 12391916544.

The previous prime is 43424442431. The next prime is 43424442433. The reversal of 43424442432 is 23424442434.

It is an interprime number because it is at equal distance from previous prime (43424442431) and next prime (43424442433).

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (43424442431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3554158 + ... + 3566354.

Almost surely, 2^43424442432 is an apocalyptic number.

43424442432 is a gapful number since it is divisible by the number (42) 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 43424442432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71211143328).

43424442432 is an abundant number, since it is smaller than the sum of its proper divisors (98997844224).

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

43424442432 is a wasteful number, since it uses less digits than its factorization.

43424442432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13105 (or 13092 counting only the distinct ones).

The product of its digits is 294912, while the sum is 36.

Adding to 43424442432 its reverse (23424442434), we get a palindrome (66848884866).

The spelling of 43424442432 in words is "forty-three billion, four hundred twenty-four million, four hundred forty-two thousand, four hundred thirty-two".