1043440431 has 8 divisors (see below), whose sum is σ = 1517731584. Its totient is φ = 632388120.

The previous prime is 1043440427. The next prime is 1043440459. The reversal of 1043440431 is 1340443401.

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

It is not a de Polignac number, because 1043440431 - 2² = 1043440427 is a prime.

It is a super-2 number, since 2×1043440431² = 2177535866090931522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043444431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15809671 + ... + 15809736.

It is an arithmetic number, because the mean of its divisors is an integer number (189716448).

Almost surely, 2^1043440431 is an apocalyptic number.

1043440431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1043440431 is a deficient number, since it is larger than the sum of its proper divisors (474291153).

1043440431 is a wasteful number, since it uses less digits than its factorization.

1043440431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31619421.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1043440431 is about 32302.3285693152. The cubic root of 1043440431 is about 1014.2753872736.

Adding to 1043440431 its reverse (1340443401), we get a palindrome (2383883832).

The spelling of 1043440431 in words is "one billion, forty-three million, four hundred forty thousand, four hundred thirty-one".