2580078 has 8 divisors (see below), whose sum is σ = 5160168. Its totient is φ = 860024.

The previous prime is 2580049. The next prime is 2580079. The reversal of 2580078 is 8700852.

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

2580078 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2580079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215001 + ... + 215012.

It is an arithmetic number, because the mean of its divisors is an integer number (645021).

2^2580078 is an apocalyptic number.

2580078 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.

2580078 is a wasteful number, since it uses less digits than its factorization.

2580078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430018.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 2580078 is about 1606.2621205768. The cubic root of 2580078 is about 137.1547791595.

It can be divided in two parts, 25800 and 78, that added together give a triangular number (25878 = T₂₂₇).

The spelling of 2580078 in words is "two million, five hundred eighty thousand, seventy-eight".