1045320340 has 48 divisors (see below), whose sum is σ = 2313904320. Its totient is φ = 395573760.

The previous prime is 1045320329. The next prime is 1045320349. The reversal of 1045320340 is 430235401.

1045320340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1045320340² = 2185389226435431200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045320349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367564 + ... + 370396.

It is an arithmetic number, because the mean of its divisors is an integer number (48206340).

Almost surely, 2^1045320340 is an apocalyptic number.

1045320340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045320340 is an abundant number, since it is smaller than the sum of its proper divisors (1268583980).

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

1045320340 is a wasteful number, since it uses less digits than its factorization.

1045320340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3832 (or 3830 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1045320340 is about 32331.4141354813. The cubic root of 1045320340 is about 1014.8841431497.

Adding to 1045320340 its reverse (430235401), we get a palindrome (1475555741).

The spelling of 1045320340 in words is "one billion, forty-five million, three hundred twenty thousand, three hundred forty".