2578494 has 16 divisors (see below), whose sum is σ = 5177232. Its totient is φ = 856128.

The previous prime is 2578489. The next prime is 2578517. The reversal of 2578494 is 4948752.

It is a super-3 number, since 3×2578494³ = 51430367807948933352, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1192 + ... + 2564.

It is an arithmetic number, because the mean of its divisors is an integer number (323577).

2^2578494 is an apocalyptic number.

2578494 is an abundant number, since it is smaller than the sum of its proper divisors (2598738).

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

2578494 is a wasteful number, since it uses less digits than its factorization.

2578494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691.

The product of its digits is 80640, while the sum is 39.

The square root of 2578494 is about 1605.7689746660. The cubic root of 2578494 is about 137.1267053771.

It can be divided in two parts, 25784 and 94, that added together give a triangular number (25878 = T₂₂₇).

The spelling of 2578494 in words is "two million, five hundred seventy-eight thousand, four hundred ninety-four".