1120440457 has 2 divisors, whose sum is σ = 1120440458. Its totient is φ = 1120440456.

The previous prime is 1120440407. The next prime is 1120440467. The reversal of 1120440457 is 7540440211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1064325376 + 56115081 = 32624^2 + 7491^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120440457 - 2⁷ = 1120440329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1120440407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560220228 + 560220229.

It is an arithmetic number, because the mean of its divisors is an integer number (560220229).

Almost surely, 2^1120440457 is an apocalyptic number.

It is an amenable number.

1120440457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120440457 is an equidigital number, since it uses as much as digits as its factorization.

1120440457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 1120440457 is about 33472.9809996062. The cubic root of 1120440457 is about 1038.6349376697.

Adding to 1120440457 its reverse (7540440211), we get a palindrome (8660880668).

The spelling of 1120440457 in words is "one billion, one hundred twenty million, four hundred forty thousand, four hundred fifty-seven".