43144642 has 8 divisors (see below), whose sum is σ = 67530816. Its totient is φ = 20634372.

The previous prime is 43144631. The next prime is 43144667. The reversal of 43144642 is 24644134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×43144642² = 3722920266616328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43144642.

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, 468918 + ... + 469009.

It is an arithmetic number, because the mean of its divisors is an integer number (8441352).

Almost surely, 2^43144642 is an apocalyptic number.

43144642 is a deficient number, since it is larger than the sum of its proper divisors (24386174).

43144642 is a wasteful number, since it uses less digits than its factorization.

43144642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937952.

The product of its digits is 9216, while the sum is 28.

The square root of 43144642 is about 6568.4581143523. The cubic root of 43144642 is about 350.7321869520.

Adding to 43144642 its reverse (24644134), we get a palindrome (67788776).

The spelling of 43144642 in words is "forty-three million, one hundred forty-four thousand, six hundred forty-two".