2302921540 has 12 divisors (see below), whose sum is σ = 4836135276. Its totient is φ = 921168608.

The previous prime is 2302921493. The next prime is 2302921549. The reversal of 2302921540 is 451292032.

It can be written as a sum of positive squares in 2 ways, for example, as 422138116 + 1880783424 = 20546^2 + 43368^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2302921499 and 2302921508.

It is not an unprimeable number, because it can be changed into a prime (2302921549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57573019 + ... + 57573058.

It is an arithmetic number, because the mean of its divisors is an integer number (403011273).

Almost surely, 2^2302921540 is an apocalyptic number.

2302921540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2302921540 is an abundant number, since it is smaller than the sum of its proper divisors (2533213736).

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

2302921540 is a wasteful number, since it uses less digits than its factorization.

2302921540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115146086 (or 115146084 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2302921540 is about 47988.7647267566. The cubic root of 2302921540 is about 1320.5647912119.

The spelling of 2302921540 in words is "two billion, three hundred two million, nine hundred twenty-one thousand, five hundred forty".