45440489 has 2 divisors, whose sum is σ = 45440490. Its totient is φ = 45440488.

The previous prime is 45440471. The next prime is 45440503. The reversal of 45440489 is 98404454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35200489 + 10240000 = 5933^2 + 3200^2 .

It is a cyclic number.

It is not a de Polignac number, because 45440489 - 2⁸ = 45440233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45440449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22720244 + 22720245.

It is an arithmetic number, because the mean of its divisors is an integer number (22720245).

Almost surely, 2^45440489 is an apocalyptic number.

It is an amenable number.

45440489 is a deficient number, since it is larger than the sum of its proper divisors (1).

45440489 is an equidigital number, since it uses as much as digits as its factorization.

45440489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 45440489 is about 6740.9560894579. The cubic root of 45440489 is about 356.8461362289.

The spelling of 45440489 in words is "forty-five million, four hundred forty thousand, four hundred eighty-nine".