43091442240 has 896 divisors, whose sum is σ = 184300904448. Its totient is φ = 8255569920.

The previous prime is 43091442239. The next prime is 43091442263. The reversal of 43091442240 is 4224419034.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 66601597 + ... + 66602243.

Almost surely, 2^43091442240 is an apocalyptic number.

43091442240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43091442240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92150452224).

43091442240 is an abundant number, since it is smaller than the sum of its proper divisors (141209462208).

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

43091442240 is a wasteful number, since it uses less digits than its factorization.

43091442240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 43091442240 in words is "forty-three billion, ninety-one million, four hundred forty-two thousand, two hundred forty".