43445142 has 48 divisors (see below), whose sum is σ = 101844288. Its totient is φ = 13305600.

The previous prime is 43445119. The next prime is 43445173. The reversal of 43445142 is 24154434.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93603 + ... + 94065.

It is an arithmetic number, because the mean of its divisors is an integer number (2121756).

Almost surely, 2^43445142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43445142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50922144).

43445142 is an abundant number, since it is smaller than the sum of its proper divisors (58399146).

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

43445142 is a wasteful number, since it uses less digits than its factorization.

43445142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 882 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 43445142 is about 6591.2928929005. The cubic root of 43445142 is about 351.5445804081.

Adding to 43445142 its reverse (24154434), we get a palindrome (67599576).

The spelling of 43445142 in words is "forty-three million, four hundred forty-five thousand, one hundred forty-two".