2290129878 has 8 divisors (see below), whose sum is σ = 4580259768. Its totient is φ = 763376624.

The previous prime is 2290129871. The next prime is 2290129879. The reversal of 2290129878 is 8789210922.

It is a sphenic number, since it is the product of 3 distinct primes.

2290129878 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2290129871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190844151 + ... + 190844162.

It is an arithmetic number, because the mean of its divisors is an integer number (572532471).

Almost surely, 2^2290129878 is an apocalyptic number.

2290129878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2290129878 is a wasteful number, since it uses less digits than its factorization.

2290129878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381688318.

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 2290129878 is about 47855.3014618025. The cubic root of 2290129878 is about 1318.1152083400.

The spelling of 2290129878 in words is "two billion, two hundred ninety million, one hundred twenty-nine thousand, eight hundred seventy-eight".