43022240 has 48 divisors (see below), whose sum is σ = 107625672. Its totient is φ = 16195584.

The previous prime is 43022227. The next prime is 43022279. The reversal of 43022240 is 4222034.

It can be written as a sum of positive squares in 4 ways, for example, as 42667024 + 355216 = 6532^2 + 596^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5189 + ... + 10628.

Almost surely, 2^43022240 is an apocalyptic number.

43022240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43022240 is an abundant number, since it is smaller than the sum of its proper divisors (64603432).

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

43022240 is a wasteful number, since it uses less digits than its factorization.

43022240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15849 (or 15841 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 43022240 is about 6559.1340891920. The cubic root of 43022240 is about 350.4001952975.

Adding to 43022240 its reverse (4222034), we get a palindrome (47244274).

The spelling of 43022240 in words is "forty-three million, twenty-two thousand, two hundred forty".