2995978440 has 128 divisors (see below), whose sum is σ = 11062114560. Its totient is φ = 632116224.

The previous prime is 2995978411. The next prime is 2995978451. The reversal of 2995978440 is 448795992.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126259 + ... + 148098.

It is an arithmetic number, because the mean of its divisors is an integer number (86422770).

Almost surely, 2^2995978440 is an apocalyptic number.

2995978440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2995978440 is an abundant number, since it is smaller than the sum of its proper divisors (8066136120).

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

2995978440 is a wasteful number, since it uses less digits than its factorization.

2995978440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274391 (or 274387 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The square root of 2995978440 is about 54735.5317869480. The cubic root of 2995978440 is about 1441.6048273266.

The spelling of 2995978440 in words is "two billion, nine hundred ninety-five million, nine hundred seventy-eight thousand, four hundred forty".