43031442 has 16 divisors (see below), whose sum is σ = 87687360. Its totient is φ = 14073072.

The previous prime is 43031423. The next prime is 43031453. The reversal of 43031442 is 24413034.

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, 67342 + ... + 67977.

It is an arithmetic number, because the mean of its divisors is an integer number (5480460).

Almost surely, 2^43031442 is an apocalyptic number.

43031442 is an abundant number, since it is smaller than the sum of its proper divisors (44655918).

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

43031442 is a wasteful number, since it uses less digits than its factorization.

43031442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135377.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 43031442 is about 6559.8355162306. The cubic root of 43031442 is about 350.4251758094.

Adding to 43031442 its reverse (24413034), we get a palindrome (67444476).

The spelling of 43031442 in words is "forty-three million, thirty-one thousand, four hundred forty-two".