2581374 has 16 divisors (see below), whose sum is σ = 5189760. Its totient is φ = 855960.

The previous prime is 2581373. The next prime is 2581391. The reversal of 2581374 is 4731852.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2581373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247 + ... + 2285.

It is an arithmetic number, because the mean of its divisors is an integer number (324360).

2^2581374 is an apocalyptic number.

2581374 is an abundant number, since it is smaller than the sum of its proper divisors (2608386).

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

2581374 is a wasteful number, since it uses less digits than its factorization.

2581374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255.

The product of its digits is 6720, while the sum is 30.

The square root of 2581374 is about 1606.6654910093. The cubic root of 2581374 is about 137.1777400725.

The spelling of 2581374 in words is "two million, five hundred eighty-one thousand, three hundred seventy-four".