43422836820 has 192 divisors, whose sum is σ = 135057162240. Its totient is φ = 10422572160.

The previous prime is 43422836803. The next prime is 43422836833. The reversal of 43422836820 is 2863822434.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8222941 + ... + 8228219.

It is an arithmetic number, because the mean of its divisors is an integer number (703422720).

Almost surely, 2^43422836820 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 43422836820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67528581120).

43422836820 is an abundant number, since it is smaller than the sum of its proper divisors (91634325420).

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

43422836820 is a wasteful number, since it uses less digits than its factorization.

43422836820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5427 (or 5403 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 42.

The spelling of 43422836820 in words is "forty-three billion, four hundred twenty-two million, eight hundred thirty-six thousand, eight hundred twenty".