2588778 has 12 divisors (see below), whose sum is σ = 5609058. Its totient is φ = 862920.

The previous prime is 2588771. The next prime is 2588809. The reversal of 2588778 is 8778852.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2331729 + 257049 = 1527^2 + 507^2 .

It is not an unprimeable number, because it can be changed into a prime (2588771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71893 + ... + 71928.

2^2588778 is an apocalyptic number.

2588778 is an abundant number, since it is smaller than the sum of its proper divisors (3020280).

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

2588778 is a wasteful number, since it uses less digits than its factorization.

2588778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143829 (or 143826 counting only the distinct ones).

The product of its digits is 250880, while the sum is 45.

The square root of 2588778 is about 1608.9679922236. The cubic root of 2588778 is about 137.3087677702.

The spelling of 2588778 in words is "two million, five hundred eighty-eight thousand, seven hundred seventy-eight".