1440726867 has 6 divisors (see below), whose sum is σ = 2081049932. Its totient is φ = 960484572.

The previous prime is 1440726857. The next prime is 1440726907. The reversal of 1440726867 is 7686270441.

It is not a de Polignac number, because 1440726867 - 2⁶ = 1440726803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1440726857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80040373 + ... + 80040390.

Almost surely, 2^1440726867 is an apocalyptic number.

1440726867 is a deficient number, since it is larger than the sum of its proper divisors (640323065).

1440726867 is a wasteful number, since it uses less digits than its factorization.

1440726867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160080769 (or 160080766 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 1440726867 is about 37956.9080273934. The cubic root of 1440726867 is about 1129.4332049291.

The spelling of 1440726867 in words is "one billion, four hundred forty million, seven hundred twenty-six thousand, eight hundred sixty-seven".