43226440 has 16 divisors (see below), whose sum is σ = 97259580. Its totient is φ = 17290560.

The previous prime is 43226419. The next prime is 43226479. The reversal of 43226440 is 4462234.

It can be written as a sum of positive squares in 2 ways, for example, as 40424164 + 2802276 = 6358^2 + 1674^2 .

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 3 ways as a sum of consecutive naturals, for example, 540291 + ... + 540370.

Almost surely, 2^43226440 is an apocalyptic number.

43226440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43226440 is an abundant number, since it is smaller than the sum of its proper divisors (54033140).

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

43226440 is a wasteful number, since it uses less digits than its factorization.

43226440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080672 (or 1080668 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 43226440 is about 6574.6817413469. The cubic root of 43226440 is about 350.9536982725.

Adding to 43226440 its reverse (4462234), we get a palindrome (47688674).

The spelling of 43226440 in words is "forty-three million, two hundred twenty-six thousand, four hundred forty".