45404881 has 2 divisors, whose sum is σ = 45404882. Its totient is φ = 45404880.

The previous prime is 45404857. The next prime is 45404893. The reversal of 45404881 is 18840454.

45404881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23126481 + 22278400 = 4809^2 + 4720^2 .

It is a cyclic number.

It is not a de Polignac number, because 45404881 - 2¹⁵ = 45372113 is a prime.

It is a super-2 number, since 2×45404881² = 4123206437248322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45404831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22702440 + 22702441.

It is an arithmetic number, because the mean of its divisors is an integer number (22702441).

Almost surely, 2^45404881 is an apocalyptic number.

It is an amenable number.

45404881 is a deficient number, since it is larger than the sum of its proper divisors (1).

45404881 is an equidigital number, since it uses as much as digits as its factorization.

45404881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 45404881 is about 6738.3144034692. The cubic root of 45404881 is about 356.7529014804.

The spelling of 45404881 in words is "forty-five million, four hundred four thousand, eight hundred eighty-one".