2581494 has 16 divisors (see below), whose sum is σ = 5329920. Its totient is φ = 832680.

The previous prime is 2581487. The next prime is 2581507. The reversal of 2581494 is 4941852.

It is a super-2 number, since 2×2581494² = 13328222544072, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

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, 6754 + ... + 7125.

It is an arithmetic number, because the mean of its divisors is an integer number (333120).

2^2581494 is an apocalyptic number.

2581494 is an abundant number, since it is smaller than the sum of its proper divisors (2748426).

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

2581494 is a wasteful number, since it uses less digits than its factorization.

2581494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13915.

The product of its digits is 11520, while the sum is 33.

The square root of 2581494 is about 1606.7028350009. The cubic root of 2581494 is about 137.1798656942.

The spelling of 2581494 in words is "two million, five hundred eighty-one thousand, four hundred ninety-four".