2278783290 has 32 divisors (see below), whose sum is σ = 6250377600. Its totient is φ = 520864704.

The previous prime is 2278783289. The next prime is 2278783291. The reversal of 2278783290 is 923878722.

It is an interprime number because it is at equal distance from previous prime (2278783289) and next prime (2278783291).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2278783291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5425465 + ... + 5425884.

It is an arithmetic number, because the mean of its divisors is an integer number (195324300).

Almost surely, 2^2278783290 is an apocalyptic number.

2278783290 is an abundant number, since it is smaller than the sum of its proper divisors (3971594310).

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

2278783290 is a wasteful number, since it uses less digits than its factorization.

2278783290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10851366.

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 2278783290 is about 47736.6032515930. The cubic root of 2278783290 is about 1315.9347091926.

The spelling of 2278783290 in words is "two billion, two hundred seventy-eight million, seven hundred eighty-three thousand, two hundred ninety".