2278902540 has 24 divisors (see below), whose sum is σ = 6380927280. Its totient is φ = 607707328.

The previous prime is 2278902463. The next prime is 2278902589. The reversal of 2278902540 is 452098722.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18990795 + ... + 18990914.

It is an arithmetic number, because the mean of its divisors is an integer number (265871970).

Almost surely, 2^2278902540 is an apocalyptic number.

2278902540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2278902540 is an abundant number, since it is smaller than the sum of its proper divisors (4102024740).

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

2278902540 is a wasteful number, since it uses less digits than its factorization.

2278902540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37981721 (or 37981719 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 2278902540 is about 47737.8522767835. The cubic root of 2278902540 is about 1315.9576633245.

The spelling of 2278902540 in words is "two billion, two hundred seventy-eight million, nine hundred two thousand, five hundred forty".