43022881 has 12 divisors (see below), whose sum is σ = 47745936. Its totient is φ = 38734520.

The previous prime is 43022879. The next prime is 43022887. The reversal of 43022881 is 18822034.

It is not a de Polignac number, because 43022881 - 2¹ = 43022879 is a prime.

It is a super-2 number, since 2×43022881² = 3701936579080322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43022887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11286 + ... + 14608.

It is an arithmetic number, because the mean of its divisors is an integer number (3978828).

Almost surely, 2^43022881 is an apocalyptic number.

It is an amenable number.

43022881 is a deficient number, since it is larger than the sum of its proper divisors (4723055).

43022881 is a wasteful number, since it uses less digits than its factorization.

43022881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452 (or 3441 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 43022881 is about 6559.1829521671. The cubic root of 43022881 is about 350.4019355246.

The spelling of 43022881 in words is "forty-three million, twenty-two thousand, eight hundred eighty-one".