1440041002 has 8 divisors (see below), whose sum is σ = 2162159712. Its totient is φ = 719321100.

The previous prime is 1440040961. The next prime is 1440041003. The reversal of 1440041002 is 2001400441.

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

It is not an unprimeable number, because it can be changed into a prime (1440041003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347124 + ... + 351247.

It is an arithmetic number, because the mean of its divisors is an integer number (270269964).

Almost surely, 2^1440041002 is an apocalyptic number.

1440041002 is a deficient number, since it is larger than the sum of its proper divisors (722118710).

1440041002 is a wasteful number, since it uses less digits than its factorization.

1440041002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699404.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1440041002 is about 37947.8721669608. The cubic root of 1440041002 is about 1129.2539524331.

Adding to 1440041002 its reverse (2001400441), we get a palindrome (3441441443).

The spelling of 1440041002 in words is "one billion, four hundred forty million, forty-one thousand, two".