1045212440 has 32 divisors (see below), whose sum is σ = 2378160000. Its totient is φ = 413385984.

The previous prime is 1045212433. The next prime is 1045212449. The reversal of 1045212440 is 442125401.

1045212440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045212449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143240 + ... + 150359.

It is an arithmetic number, because the mean of its divisors is an integer number (74317500).

Almost surely, 2^1045212440 is an apocalyptic number.

1045212440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045212440 is an abundant number, since it is smaller than the sum of its proper divisors (1332947560).

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

1045212440 is a wasteful number, since it uses less digits than its factorization.

1045212440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293699 (or 293695 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1045212440 is about 32329.7454366718. The cubic root of 1045212440 is about 1014.8492225093.

Adding to 1045212440 its reverse (442125401), we get a palindrome (1487337841).

The spelling of 1045212440 in words is "one billion, forty-five million, two hundred twelve thousand, four hundred forty".