43609708428 has 288 divisors, whose sum is σ = 130649702400. Its totient is φ = 11180332800.

The previous prime is 43609708423. The next prime is 43609708451. The reversal of 43609708428 is 82480790634.

It is not an unprimeable number, because it can be changed into a prime (43609708423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13137753 + ... + 13141071.

It is an arithmetic number, because the mean of its divisors is an integer number (453644800).

Almost surely, 2^43609708428 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 43609708428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65324851200).

43609708428 is an abundant number, since it is smaller than the sum of its proper divisors (87039993972).

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

43609708428 is a wasteful number, since it uses less digits than its factorization.

43609708428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3413 (or 3398 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 43609708428 in words is "forty-three billion, six hundred nine million, seven hundred eight thousand, four hundred twenty-eight".