1963440001 has 8 divisors (see below), whose sum is σ = 1996622208. Its totient is φ = 1930290000.

The previous prime is 1963439981. The next prime is 1963440043. The reversal of 1963440001 is 1000443691.

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 1963440001 - 2⁵ = 1963439969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1963450001) 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, 136566 + ... + 150256.

It is an arithmetic number, because the mean of its divisors is an integer number (249577776).

Almost surely, 2^1963440001 is an apocalyptic number.

It is an amenable number.

1963440001 is a deficient number, since it is larger than the sum of its proper divisors (33182207).

1963440001 is a wasteful number, since it uses less digits than its factorization.

1963440001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16103.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1963440001 is about 44310.7210616122. The cubic root of 1963440001 is about 1252.1966709946.

Adding to 1963440001 its reverse (1000443691), we get a palindrome (2963883692).

The spelling of 1963440001 in words is "one billion, nine hundred sixty-three million, four hundred forty thousand, one".