2578394 has 32 divisors (see below), whose sum is σ = 4924416. Its totient is φ = 984960.

The previous prime is 2578393. The next prime is 2578403. The reversal of 2578394 is 4938752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2578391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5414 + ... + 5870.

It is an arithmetic number, because the mean of its divisors is an integer number (153888).

2^2578394 is an apocalyptic number.

2578394 is a deficient number, since it is larger than the sum of its proper divisors (2346022).

2578394 is a wasteful number, since it uses less digits than its factorization.

2578394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510.

The product of its digits is 60480, while the sum is 38.

The square root of 2578394 is about 1605.7378366346. The cubic root of 2578394 is about 137.1249326566.

The spelling of 2578394 in words is "two million, five hundred seventy-eight thousand, three hundred ninety-four".