1044020456 has 16 divisors (see below), whose sum is σ = 2072687940. Its totient is φ = 491303680.

The previous prime is 1044020441. The next prime is 1044020459. The reversal of 1044020456 is 6540204401.

It can be written as a sum of positive squares in 2 ways, for example, as 787700356 + 256320100 = 28066^2 + 16010^2 .

It is not an unprimeable number, because it can be changed into a prime (1044020459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3838175 + ... + 3838446.

Almost surely, 2^1044020456 is an apocalyptic number.

It is an amenable number.

1044020456 is a deficient number, since it is larger than the sum of its proper divisors (1028667484).

1044020456 is a wasteful number, since it uses less digits than its factorization.

1044020456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7676644 (or 7676640 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1044020456 is about 32311.3053899096. The cubic root of 1044020456 is about 1014.4632900643.

Adding to 1044020456 its reverse (6540204401), we get a palindrome (7584224857).

The spelling of 1044020456 in words is "one billion, forty-four million, twenty thousand, four hundred fifty-six".