1440003979 has 2 divisors, whose sum is σ = 1440003980. Its totient is φ = 1440003978.

The previous prime is 1440003959. The next prime is 1440004051. The reversal of 1440003979 is 9793000441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1440003979 - 2⁵ = 1440003947 is a prime.

It is a super-2 number, since 2×1440003979² = 4147222919071664882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1440003949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720001989 + 720001990.

It is an arithmetic number, because the mean of its divisors is an integer number (720001990).

Almost surely, 2^1440003979 is an apocalyptic number.

1440003979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440003979 is an equidigital number, since it uses as much as digits as its factorization.

1440003979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 1440003979 is about 37947.3843499127. The cubic root of 1440003979 is about 1129.2442747625.

The spelling of 1440003979 in words is "one billion, four hundred forty million, three thousand, nine hundred seventy-nine".