2045128460 has 24 divisors (see below), whose sum is σ = 4520811120. Its totient is φ = 774995904.

The previous prime is 2045128453. The next prime is 2045128493. The reversal of 2045128460 is 648215402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2690579 + ... + 2691338.

It is an arithmetic number, because the mean of its divisors is an integer number (188367130).

Almost surely, 2^2045128460 is an apocalyptic number.

2045128460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045128460 is an abundant number, since it is smaller than the sum of its proper divisors (2475682660).

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

2045128460 is a wasteful number, since it uses less digits than its factorization.

2045128460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381945 (or 5381943 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 2045128460 is about 45223.0965326347. The cubic root of 2045128460 is about 1269.3270371868.

The spelling of 2045128460 in words is "two billion, forty-five million, one hundred twenty-eight thousand, four hundred sixty".