1045444040 has 32 divisors (see below), whose sum is σ = 2357874360. Its totient is φ = 417177600.

The previous prime is 1045444033. The next prime is 1045444073. The reversal of 1045444040 is 404445401.

It can be written as a sum of positive squares in 4 ways, for example, as 193154404 + 852289636 = 13898^2 + 29194^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14201 + ... + 47880.

Almost surely, 2^1045444040 is an apocalyptic number.

1045444040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045444040 is an abundant number, since it is smaller than the sum of its proper divisors (1312430320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1045444040 is a wasteful number, since it uses less digits than its factorization.

1045444040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62513 (or 62509 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 1045444040 is about 32333.3270790372. The cubic root of 1045444040 is about 1014.9241743286.

Adding to 1045444040 its reverse (404445401), we get a palindrome (1449889441).

The spelling of 1045444040 in words is "one billion, forty-five million, four hundred forty-four thousand, forty".