440262643 has 2 divisors, whose sum is σ = 440262644. Its totient is φ = 440262642.

The previous prime is 440262637. The next prime is 440262649. The reversal of 440262643 is 346262044.

It is a balanced prime because it is at equal distance from previous prime (440262637) and next prime (440262649).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440262643 is a prime.

It is not a weakly prime, because it can be changed into another prime (440262649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220131321 + 220131322.

It is an arithmetic number, because the mean of its divisors is an integer number (220131322).

Almost surely, 2^440262643 is an apocalyptic number.

440262643 is a deficient number, since it is larger than the sum of its proper divisors (1).

440262643 is an equidigital number, since it uses as much as digits as its factorization.

440262643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 440262643 is about 20982.4365363034. The cubic root of 440262643 is about 760.7417982390.

The spelling of 440262643 in words is "four hundred forty million, two hundred sixty-two thousand, six hundred forty-three".