43442214431 has 16 divisors (see below), whose sum is σ = 54287428608. Its totient is φ = 33772509600.

The previous prime is 43442214427. The next prime is 43442214437. The reversal of 43442214431 is 13441224434.

It is a cyclic number.

It is not a de Polignac number, because 43442214431 - 2² = 43442214427 is a prime.

It is a super-2 number, since 2×43442214431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43442214437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621320 + ... + 687693.

It is an arithmetic number, because the mean of its divisors is an integer number (3392964288).

Almost surely, 2^43442214431 is an apocalyptic number.

43442214431 is a deficient number, since it is larger than the sum of its proper divisors (10845214177).

43442214431 is a wasteful number, since it uses less digits than its factorization.

43442214431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309462.

The product of its digits is 36864, while the sum is 32.

Adding to 43442214431 its reverse (13441224434), we get a palindrome (56883438865).

The spelling of 43442214431 in words is "forty-three billion, four hundred forty-two million, two hundred fourteen thousand, four hundred thirty-one".