1012440443 has 8 divisors (see below), whose sum is σ = 1165908480. Its totient is φ = 861180840.

The previous prime is 1012440421. The next prime is 1012440467. The reversal of 1012440443 is 3440442101.

It is a happy number.

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 1012440443 - 2¹⁰ = 1012439419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012440493) 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, 551123 + ... + 552956.

It is an arithmetic number, because the mean of its divisors is an integer number (145738560).

Almost surely, 2^1012440443 is an apocalyptic number.

1012440443 is a deficient number, since it is larger than the sum of its proper divisors (153468037).

1012440443 is a wasteful number, since it uses less digits than its factorization.

1012440443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104217.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1012440443 is about 31818.8692916640. The cubic root of 1012440443 is about 1004.1297361356.

Adding to 1012440443 its reverse (3440442101), we get a palindrome (4452882544).

The spelling of 1012440443 in words is "one billion, twelve million, four hundred forty thousand, four hundred forty-three".