43303782438 has 168 divisors, whose sum is σ = 113711785200. Its totient is φ = 12326398560.

The previous prime is 43303782419. The next prime is 43303782449. The reversal of 43303782438 is 83428730334.

43303782438 is a `hidden beast` number, since 4 + 3 + 30 + 378 + 243 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 43303782393 and 43303782402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 22217488 + ... + 22219436.

Almost surely, 2^43303782438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43303782438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56855892600).

43303782438 is an abundant number, since it is smaller than the sum of its proper divisors (70408002762).

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

43303782438 is a wasteful number, since it uses less digits than its factorization.

43303782438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294 (or 2272 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

The spelling of 43303782438 in words is "forty-three billion, three hundred three million, seven hundred eighty-two thousand, four hundred thirty-eight".