43342431 has 16 divisors (see below), whose sum is σ = 63170688. Its totient is φ = 26215200.

The previous prime is 43342417. The next prime is 43342457. The reversal of 43342431 is 13424334.

It is not a de Polignac number, because 43342431 - 2⁷ = 43342303 is a prime.

It is a super-2 number, since 2×43342431² = 3757132649979522, which contains 22 as substring.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43342331) 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, 20820 + ... + 22806.

It is an arithmetic number, because the mean of its divisors is an integer number (3948168).

Almost surely, 2^43342431 is an apocalyptic number.

43342431 is a deficient number, since it is larger than the sum of its proper divisors (19828257).

43342431 is a wasteful number, since it uses less digits than its factorization.

43342431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662.

The product of its digits is 3456, while the sum is 24.

The square root of 43342431 is about 6583.4968671672. The cubic root of 43342431 is about 351.2673266445.

Adding to 43342431 its reverse (13424334), we get a palindrome (56766765).

The spelling of 43342431 in words is "forty-three million, three hundred forty-two thousand, four hundred thirty-one".