1440602001 has 6 divisors (see below), whose sum is σ = 2080869570. Its totient is φ = 960401328.

The previous prime is 1440601979. The next prime is 1440602003. The reversal of 1440602001 is 1002060441.

It can be written as a sum of positive squares in only one way, i.e., 891918225 + 548683776 = 29865^2 + 23424^2 .

It is not a de Polignac number, because 1440602001 - 2⁷ = 1440601873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1440602003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80033436 + ... + 80033453.

It is an arithmetic number, because the mean of its divisors is an integer number (346811595).

Almost surely, 2^1440602001 is an apocalyptic number.

It is an amenable number.

1440602001 is a deficient number, since it is larger than the sum of its proper divisors (640267569).

1440602001 is a wasteful number, since it uses less digits than its factorization.

1440602001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160066895 (or 160066892 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1440602001 is about 37955.2631528224. The cubic root of 1440602001 is about 1129.4005751309.

Adding to 1440602001 its reverse (1002060441), we get a palindrome (2442662442).

The spelling of 1440602001 in words is "one billion, four hundred forty million, six hundred two thousand, one".