43001242 has 4 divisors (see below), whose sum is σ = 64501866. Its totient is φ = 21500620.

The previous prime is 43001239. The next prime is 43001249. The reversal of 43001242 is 24210034.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27783441 + 15217801 = 5271^2 + 3901^2 .

It is not an unprimeable number, because it can be changed into a prime (43001249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10750309 + ... + 10750312.

Almost surely, 2^43001242 is an apocalyptic number.

43001242 is a deficient number, since it is larger than the sum of its proper divisors (21500624).

43001242 is a wasteful number, since it uses less digits than its factorization.

43001242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21500623.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 43001242 is about 6557.5332252304. The cubic root of 43001242 is about 350.3431790453.

Adding to 43001242 its reverse (24210034), we get a palindrome (67211276).

The spelling of 43001242 in words is "forty-three million, one thousand, two hundred forty-two".