2581246 has 24 divisors (see below), whose sum is σ = 4289760. Its totient is φ = 1160640.

The previous prime is 2581223. The next prime is 2581253. The reversal of 2581246 is 6421852.

Its product of digits (3840) is a multiple of the sum of its prime factors (160).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32635 + ... + 32713.

It is an arithmetic number, because the mean of its divisors is an integer number (178740).

2^2581246 is an apocalyptic number.

2581246 is a deficient number, since it is larger than the sum of its proper divisors (1708514).

2581246 is a wasteful number, since it uses less digits than its factorization.

2581246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 129 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 2581246 is about 1606.6256564614. The cubic root of 2581246 is about 137.1754726701.

Subtracting 2581246 from its reverse (6421852), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 2581246 in words is "two million, five hundred eighty-one thousand, two hundred forty-six".