2999778240 has 112 divisors (see below), whose sum is σ = 9831628800. Its totient is φ = 774128640.

The previous prime is 2999778239. The next prime is 2999778251. The reversal of 2999778240 is 428779992.

It is a congruent number.

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, 20640 + ... + 80159.

It is an arithmetic number, because the mean of its divisors is an integer number (87782400).

Almost surely, 2^2999778240 is an apocalyptic number.

2999778240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2999778240 is an abundant number, since it is smaller than the sum of its proper divisors (6831850560).

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

2999778240 is a wasteful number, since it uses less digits than its factorization.

2999778240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100850 (or 100840 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 57.

The square root of 2999778240 is about 54770.2313305321. The cubic root of 2999778240 is about 1442.2140324023.

The spelling of 2999778240 in words is "two billion, nine hundred ninety-nine million, seven hundred seventy-eight thousand, two hundred forty".