1040305444 has 12 divisors (see below), whose sum is σ = 1822664844. Its totient is φ = 519544064.

The previous prime is 1040305439. The next prime is 1040305447. The reversal of 1040305444 is 4445030401.

It can be written as a sum of positive squares in 2 ways, for example, as 882802944 + 157502500 = 29712^2 + 12550^2 .

It is not an unprimeable number, because it can be changed into a prime (1040305447) 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 in 3 ways as a sum of consecutive naturals, for example, 148309 + ... + 155164.

It is an arithmetic number, because the mean of its divisors is an integer number (151888737).

Almost surely, 2^1040305444 is an apocalyptic number.

It is an amenable number.

1040305444 is a deficient number, since it is larger than the sum of its proper divisors (782359400).

1040305444 is a wasteful number, since it uses less digits than its factorization.

1040305444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304334 (or 304332 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1040305444 is about 32253.7663537144. The cubic root of 1040305444 is about 1013.2585811182.

Adding to 1040305444 its reverse (4445030401), we get a palindrome (5485335845).

The spelling of 1040305444 in words is "one billion, forty million, three hundred five thousand, four hundred forty-four".