1067440231 has 8 divisors (see below), whose sum is σ = 1254055824. Its totient is φ = 895753920.

The previous prime is 1067440229. The next prime is 1067440243. The reversal of 1067440231 is 1320447601.

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

It is a cyclic number.

It is not a de Polignac number, because 1067440231 - 2¹ = 1067440229 is a prime.

It is a super-2 number, since 2×1067440231² = 2278857293514666722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1067440231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1067440201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3732166 + ... + 3732451.

It is an arithmetic number, because the mean of its divisors is an integer number (156756978).

Almost surely, 2^1067440231 is an apocalyptic number.

1067440231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1067440231 is a deficient number, since it is larger than the sum of its proper divisors (186615593).

1067440231 is a wasteful number, since it uses less digits than its factorization.

1067440231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7464641.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1067440231 is about 32671.7038276243. The cubic root of 1067440231 is about 1021.9928458592.

Adding to 1067440231 its reverse (1320447601), we get a palindrome (2387887832).

It can be divided in two parts, 10674 and 40231, that added together give a palindrome (50905).

The spelling of 1067440231 in words is "one billion, sixty-seven million, four hundred forty thousand, two hundred thirty-one".