2278974940 has 96 divisors (see below), whose sum is σ = 5312563200. Its totient is φ = 814302720.

The previous prime is 2278974913. The next prime is 2278974949. The reversal of 2278974940 is 494798722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278974949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4679377 + ... + 4679863.

It is an arithmetic number, because the mean of its divisors is an integer number (55339200).

Almost surely, 2^2278974940 is an apocalyptic number.

2278974940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2278974940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2656281600).

2278974940 is an abundant number, since it is smaller than the sum of its proper divisors (3033588260).

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

2278974940 is a wasteful number, since it uses less digits than its factorization.

2278974940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 52.

The square root of 2278974940 is about 47738.6105788595. The cubic root of 2278974940 is about 1315.9715990274.

The spelling of 2278974940 in words is "two billion, two hundred seventy-eight million, nine hundred seventy-four thousand, nine hundred forty".