43450831416 has 256 divisors, whose sum is σ = 119830233600. Its totient is φ = 13083033600.

The previous prime is 43450831379. The next prime is 43450831439. The reversal of 43450831416 is 61413805434.

It is a happy number.

43450831416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 276756810 + ... + 276756966.

It is an arithmetic number, because the mean of its divisors is an integer number (468086850).

Almost surely, 2^43450831416 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 43450831416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59915116800).

43450831416 is an abundant number, since it is smaller than the sum of its proper divisors (76379402184).

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

43450831416 is a wasteful number, since it uses less digits than its factorization.

43450831416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 43450831416 in words is "forty-three billion, four hundred fifty million, eight hundred thirty-one thousand, four hundred sixteen".