440906461 has 2 divisors, whose sum is σ = 440906462. Its totient is φ = 440906460.

The previous prime is 440906449. The next prime is 440906503. The reversal of 440906461 is 164609044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 436559236 + 4347225 = 20894^2 + 2085^2 .

It is a cyclic number.

It is not a de Polignac number, because 440906461 - 2¹⁷ = 440775389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440903461) 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, 220453230 + 220453231.

It is an arithmetic number, because the mean of its divisors is an integer number (220453231).

Almost surely, 2^440906461 is an apocalyptic number.

It is an amenable number.

440906461 is a deficient number, since it is larger than the sum of its proper divisors (1).

440906461 is an equidigital number, since it uses as much as digits as its factorization.

440906461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 440906461 is about 20997.7727628432. The cubic root of 440906461 is about 761.1124411735.

The spelling of 440906461 in words is "four hundred forty million, nine hundred six thousand, four hundred sixty-one".