2278292788 has 24 divisors (see below), whose sum is σ = 4085595360. Its totient is φ = 1111275360.

The previous prime is 2278292773. The next prime is 2278292789. The reversal of 2278292788 is 8872928722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278292789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5931 + ... + 67762.

It is an arithmetic number, because the mean of its divisors is an integer number (170233140).

Almost surely, 2^2278292788 is an apocalyptic number.

It is an amenable number.

2278292788 is a deficient number, since it is larger than the sum of its proper divisors (1807302572).

2278292788 is a wasteful number, since it uses less digits than its factorization.

2278292788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73887 (or 73885 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 55.

The square root of 2278292788 is about 47731.4653871008. The cubic root of 2278292788 is about 1315.8402852769.

The spelling of 2278292788 in words is "two billion, two hundred seventy-eight million, two hundred ninety-two thousand, seven hundred eighty-eight".