440024491 has 2 divisors, whose sum is σ = 440024492. Its totient is φ = 440024490.

The previous prime is 440024489. The next prime is 440024513. The reversal of 440024491 is 194420044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440024491 - 2¹ = 440024489 is a prime.

Together with 440024489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (440024411) 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 as a sum of consecutive naturals, namely, 220012245 + 220012246.

It is an arithmetic number, because the mean of its divisors is an integer number (220012246).

Almost surely, 2^440024491 is an apocalyptic number.

440024491 is a deficient number, since it is larger than the sum of its proper divisors (1).

440024491 is an equidigital number, since it uses as much as digits as its factorization.

440024491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 440024491 is about 20976.7607365866. The cubic root of 440024491 is about 760.6046037251.

The spelling of 440024491 in words is "four hundred forty million, twenty-four thousand, four hundred ninety-one".