2045884380 has 48 divisors (see below), whose sum is σ = 6065448480. Its totient is φ = 513476608.

The previous prime is 2045884361. The next prime is 2045884387. The reversal of 2045884380 is 834885402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045884387) 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, 1001865 + ... + 1003904.

It is an arithmetic number, because the mean of its divisors is an integer number (126363510).

Almost surely, 2^2045884380 is an apocalyptic number.

2045884380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045884380 is an abundant number, since it is smaller than the sum of its proper divisors (4019564100).

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

2045884380 is a wasteful number, since it uses less digits than its factorization.

2045884380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005798 (or 2005796 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The square root of 2045884380 is about 45231.4534367402. The cubic root of 2045884380 is about 1269.4834073968.

The spelling of 2045884380 in words is "two billion, forty-five million, eight hundred eighty-four thousand, three hundred eighty".