440040003979 has 2 divisors, whose sum is σ = 440040003980. Its totient is φ = 440040003978.

The previous prime is 440040003973. The next prime is 440040004043. The reversal of 440040003979 is 979300040044.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440040003979 is a prime.

It is not a weakly prime, because it can be changed into another prime (440040003973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220020001989 + 220020001990.

It is an arithmetic number, because the mean of its divisors is an integer number (220020001990).

Almost surely, 2^440040003979 is an apocalyptic number.

440040003979 is a deficient number, since it is larger than the sum of its proper divisors (1).

440040003979 is an equidigital number, since it uses as much as digits as its factorization.

440040003979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 440040003979 in words is "four hundred forty billion, forty million, three thousand, nine hundred seventy-nine".