1045520444 has 12 divisors (see below), whose sum is σ = 1852821600. Its totient is φ = 516142848.

The previous prime is 1045520431. The next prime is 1045520449. The reversal of 1045520444 is 4440255401.

It is a super-2 number, since 2×1045520444² = 2186225997643914272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045520449) 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, 1653989 + ... + 1654620.

It is an arithmetic number, because the mean of its divisors is an integer number (154401800).

Almost surely, 2^1045520444 is an apocalyptic number.

It is an amenable number.

1045520444 is a deficient number, since it is larger than the sum of its proper divisors (807301156).

1045520444 is a wasteful number, since it uses less digits than its factorization.

1045520444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308692 (or 3308690 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 1045520444 is about 32334.5085628342. The cubic root of 1045520444 is about 1014.9488982337.

Adding to 1045520444 its reverse (4440255401), we get a palindrome (5485775845).

The spelling of 1045520444 in words is "one billion, forty-five million, five hundred twenty thousand, four hundred forty-four".