43225281 has 24 divisors (see below), whose sum is σ = 68631264. Its totient is φ = 25997760.

The previous prime is 43225279. The next prime is 43225309. The reversal of 43225281 is 18252234.

It is not a de Polignac number, because 43225281 - 2¹ = 43225279 is a prime.

It is a super-2 number, since 2×43225281² = 3736849835057922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43225201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11970 + ... + 15156.

It is an arithmetic number, because the mean of its divisors is an integer number (2859636).

Almost surely, 2^43225281 is an apocalyptic number.

It is an amenable number.

43225281 is a deficient number, since it is larger than the sum of its proper divisors (25405983).

43225281 is a wasteful number, since it uses less digits than its factorization.

43225281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341 (or 3338 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 43225281 is about 6574.5935996075. The cubic root of 43225281 is about 350.9505616200.

The spelling of 43225281 in words is "forty-three million, two hundred twenty-five thousand, two hundred eighty-one".