43240344142 has 4 divisors (see below), whose sum is σ = 64860516216. Its totient is φ = 21620172070.

The previous prime is 43240344137. The next prime is 43240344143. The reversal of 43240344142 is 24144304234.

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

It is a super-3 number, since 3×43240344142³ (a number of 33 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43240344143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10810086034 + ... + 10810086037.

It is an arithmetic number, because the mean of its divisors is an integer number (16215129054).

Almost surely, 2^43240344142 is an apocalyptic number.

43240344142 is a deficient number, since it is larger than the sum of its proper divisors (21620172074).

43240344142 is a wasteful number, since it uses less digits than its factorization.

43240344142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21620172073.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 43240344142 its reverse (24144304234), we get a palindrome (67384648376).

The spelling of 43240344142 in words is "forty-three billion, two hundred forty million, three hundred forty-four thousand, one hundred forty-two".