1440042201 has 12 divisors (see below), whose sum is σ = 2240065828. Its totient is φ = 886179744.

The previous prime is 1440042193. The next prime is 1440042211. The reversal of 1440042201 is 1022400441.

1440042201 is a `hidden beast` number, since 1 + 440 + 0 + 4 + 220 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 649026576 + 791015625 = 25476^2 + 28125^2 .

It is not a de Polignac number, because 1440042201 - 2³ = 1440042193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1440042211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6153910 + ... + 6154143.

Almost surely, 2^1440042201 is an apocalyptic number.

It is an amenable number.

1440042201 is a deficient number, since it is larger than the sum of its proper divisors (800023627).

1440042201 is a wasteful number, since it uses less digits than its factorization.

1440042201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12308072 (or 12308069 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1440042201 is about 37947.8879649448. The cubic root of 1440042201 is about 1129.2542658443.

Adding to 1440042201 its reverse (1022400441), we get a palindrome (2462442642).

The spelling of 1440042201 in words is "one billion, four hundred forty million, forty-two thousand, two hundred one".