2145044320 has 24 divisors (see below), whose sum is σ = 5067667584. Its totient is φ = 858017664.

The previous prime is 2145044227. The next prime is 2145044339. The reversal of 2145044320 is 234405412.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6703104 + ... + 6703423.

It is an arithmetic number, because the mean of its divisors is an integer number (211152816).

Almost surely, 2^2145044320 is an apocalyptic number.

2145044320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2145044320 is an abundant number, since it is smaller than the sum of its proper divisors (2922623264).

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

2145044320 is a wasteful number, since it uses less digits than its factorization.

2145044320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13406542 (or 13406534 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2145044320 is about 46314.6231767031. The cubic root of 2145044320 is about 1289.6704724874.

Adding to 2145044320 its reverse (234405412), we get a palindrome (2379449732).

The spelling of 2145044320 in words is "two billion, one hundred forty-five million, forty-four thousand, three hundred twenty".