43442442 has 12 divisors (see below), whose sum is σ = 94125330. Its totient is φ = 14480808.

The previous prime is 43442393. The next prime is 43442453. The reversal of 43442442 is 24424434.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 43283241 + 159201 = 6579^2 + 399^2 .

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 5 ways as a sum of consecutive naturals, for example, 1206717 + ... + 1206752.

Almost surely, 2^43442442 is an apocalyptic number.

43442442 is an abundant number, since it is smaller than the sum of its proper divisors (50682888).

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

43442442 is a wasteful number, since it uses less digits than its factorization.

43442442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413477 (or 2413474 counting only the distinct ones).

The product of its digits is 12288, while the sum is 27.

The square root of 43442442 is about 6591.0880740588. The cubic root of 43442442 is about 351.5372977371.

Adding to 43442442 its reverse (24424434), we get a palindrome (67866876).

It can be divided in two parts, 4344 and 2442, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 43442442 in words is "forty-three million, four hundred forty-two thousand, four hundred forty-two".