1140440001 has 8 divisors (see below), whose sum is σ = 1521489504. Its totient is φ = 759841920.

The previous prime is 1140439987. The next prime is 1140440009. The reversal of 1140440001 is 1000440411.

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

It is not a de Polignac number, because 1140440001 - 2¹⁰ = 1140438977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1140440009) 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, 106915 + ... + 117096.

It is an arithmetic number, because the mean of its divisors is an integer number (190186188).

Almost surely, 2^1140440001 is an apocalyptic number.

It is an amenable number.

1140440001 is a deficient number, since it is larger than the sum of its proper divisors (381049503).

1140440001 is a wasteful number, since it uses less digits than its factorization.

1140440001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225711.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1140440001 is about 33770.4012561296. The cubic root of 1140440001 is about 1044.7783084742.

Adding to 1140440001 its reverse (1000440411), we get a palindrome (2140880412).

The spelling of 1140440001 in words is "one billion, one hundred forty million, four hundred forty thousand, one".