2568978 has 36 divisors (see below), whose sum is σ = 5800158. Its totient is φ = 821280.

The previous prime is 2568953. The next prime is 2568983. The reversal of 2568978 is 8798652.

It can be written as a sum of positive squares in only one way, i.e., 2537649 + 31329 = 1593^2 + 177^2 .

Its product of digits (241920) is a multiple of the sum of its prime divisors (105).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 43513 + ... + 43571.

2^2568978 is an apocalyptic number.

2568978 is an abundant number, since it is smaller than the sum of its proper divisors (3231180).

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

2568978 is a wasteful number, since it uses less digits than its factorization.

2568978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 105 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 2568978 is about 1602.8031694503. The cubic root of 2568978 is about 136.9578075268.

The spelling of 2568978 in words is "two million, five hundred sixty-eight thousand, nine hundred seventy-eight".