5440781 has 2 divisors, whose sum is σ = 5440782. Its totient is φ = 5440780.

The previous prime is 5440759. The next prime is 5440793. The reversal of 5440781 is 1870445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5428900 + 11881 = 2330^2 + 109^2 .

It is a cyclic number.

It is not a de Polignac number, because 5440781 - 2²² = 1246477 is a prime.

It is a super-2 number, since 2×5440781² = 59204195779922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5440751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2720390 + 2720391.

It is an arithmetic number, because the mean of its divisors is an integer number (2720391).

Almost surely, 2^5440781 is an apocalyptic number.

It is an amenable number.

5440781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5440781 is an equidigital number, since it uses as much as digits as its factorization.

5440781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 5440781 is about 2332.5481774231. The cubic root of 5440781 is about 175.8816029639.

The spelling of 5440781 in words is "five million, four hundred forty thousand, seven hundred eighty-one".