440242477 has 2 divisors, whose sum is σ = 440242478. Its totient is φ = 440242476.

The previous prime is 440242459. The next prime is 440242507. The reversal of 440242477 is 774242044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 306285001 + 133957476 = 17501^2 + 11574^2 .

It is a cyclic number.

It is not a de Polignac number, because 440242477 - 2⁷ = 440242349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440242447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220121238 + 220121239.

It is an arithmetic number, because the mean of its divisors is an integer number (220121239).

Almost surely, 2^440242477 is an apocalyptic number.

It is an amenable number.

440242477 is a deficient number, since it is larger than the sum of its proper divisors (1).

440242477 is an equidigital number, since it uses as much as digits as its factorization.

440242477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50176, while the sum is 34.

The square root of 440242477 is about 20981.9559860371. The cubic root of 440242477 is about 760.7301829349.

The spelling of 440242477 in words is "four hundred forty million, two hundred forty-two thousand, four hundred seventy-seven".