2905207980 has 48 divisors (see below), whose sum is σ = 8138914560. Its totient is φ = 774309568.

The previous prime is 2905207973. The next prime is 2905208027. The reversal of 2905207980 is 897025092.

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 15 ways as a sum of consecutive naturals, for example, 110467 + ... + 134213.

It is an arithmetic number, because the mean of its divisors is an integer number (169560720).

Almost surely, 2^2905207980 is an apocalyptic number.

2905207980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2905207980 is an abundant number, since it is smaller than the sum of its proper divisors (5233706580).

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

2905207980 is a wasteful number, since it uses less digits than its factorization.

2905207980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25798 (or 25796 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 2905207980 is about 53899.9812615923. The cubic root of 2905207980 is about 1426.8962922916.

The spelling of 2905207980 in words is "two billion, nine hundred five million, two hundred seven thousand, nine hundred eighty".