2579421 has 24 divisors (see below), whose sum is σ = 3965920. Its totient is φ = 1478304.

The previous prime is 2579419. The next prime is 2579443. The reversal of 2579421 is 1249752.

It is not a de Polignac number, because 2579421 - 2¹ = 2579419 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2579411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43690 + ... + 43748.

2^2579421 is an apocalyptic number.

It is an amenable number.

2579421 is a deficient number, since it is larger than the sum of its proper divisors (1386499).

2579421 is a wasteful number, since it uses less digits than its factorization.

2579421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 94 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 2579421 is about 1606.0575954803. The cubic root of 2579421 is about 137.1431363152.

The spelling of 2579421 in words is "two million, five hundred seventy-nine thousand, four hundred twenty-one".