2579990 has 16 divisors (see below), whose sum is σ = 5307552. Its totient is φ = 884544.

The previous prime is 2579989. The next prime is 2579999. The reversal of 2579990 is 999752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2579999) 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, 18359 + ... + 18498.

It is an arithmetic number, because the mean of its divisors is an integer number (331722).

2^2579990 is an apocalyptic number.

2579990 is an abundant number, since it is smaller than the sum of its proper divisors (2727562).

2579990 is a wasteful number, since it uses less digits than its factorization.

2579990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36871.

The product of its (nonzero) digits is 51030, while the sum is 41.

The square root of 2579990 is about 1606.2347275539. The cubic root of 2579990 is about 137.1532198064.

The spelling of 2579990 in words is "two million, five hundred seventy-nine thousand, nine hundred ninety".