5440381 has 2 divisors, whose sum is σ = 5440382. Its totient is φ = 5440380.

The previous prime is 5440363. The next prime is 5440387. The reversal of 5440381 is 1830445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5331481 + 108900 = 2309^2 + 330^2 .

It is a cyclic number.

It is not a de Polignac number, because 5440381 - 2⁹ = 5439869 is a prime.

It is a super-2 number, since 2×5440381² = 59195490850322, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5440387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2720190 + 2720191.

It is an arithmetic number, because the mean of its divisors is an integer number (2720191).

Almost surely, 2^5440381 is an apocalyptic number.

It is an amenable number.

5440381 is a deficient number, since it is larger than the sum of its proper divisors (1).

5440381 is an equidigital number, since it uses as much as digits as its factorization.

5440381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 5440381 is about 2332.4624327093. The cubic root of 5440381 is about 175.8772926535.

The spelling of 5440381 in words is "five million, four hundred forty thousand, three hundred eighty-one".