43427340990 has 192 divisors, whose sum is σ = 132261921792. Its totient is φ = 9768729600.

The previous prime is 43427340959. The next prime is 43427340991. The reversal of 43427340990 is 9904372434.

43427340990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43427340991) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1176759 + ... + 1213101.

It is an arithmetic number, because the mean of its divisors is an integer number (688864176).

Almost surely, 2^43427340990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43427340990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66130960896).

43427340990 is an abundant number, since it is smaller than the sum of its proper divisors (88834580802).

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

43427340990 is a wasteful number, since it uses less digits than its factorization.

43427340990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36455 (or 36452 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 43427340990 in words is "forty-three billion, four hundred twenty-seven million, three hundred forty thousand, nine hundred ninety".