2278942500 has 60 divisors (see below), whose sum is σ = 6644810480. Its totient is φ = 607716000.

The previous prime is 2278942469. The next prime is 2278942553. The reversal of 2278942500 is 52498722.

It is a tau number, because it is divible by the number of its divisors (60).

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 19 ways as a sum of consecutive naturals, for example, 144430 + ... + 159429.

Almost surely, 2^2278942500 is an apocalyptic number.

2278942500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2278942500 is an abundant number, since it is smaller than the sum of its proper divisors (4365867980).

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

2278942500 is a wasteful number, since it uses less digits than its factorization.

2278942500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303886 (or 303869 counting only the distinct ones).

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

The square root of 2278942500 is about 47738.2708107447. The cubic root of 2278942500 is about 1315.9653549451.

The spelling of 2278942500 in words is "two billion, two hundred seventy-eight million, nine hundred forty-two thousand, five hundred".