2586940 has 12 divisors (see below), whose sum is σ = 5432616. Its totient is φ = 1034768.

The previous prime is 2586931. The next prime is 2586943. The reversal of 2586940 is 496852.

It is a happy number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2586896 and 2586905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2586943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64654 + ... + 64693.

It is an arithmetic number, because the mean of its divisors is an integer number (452718).

2^2586940 is an apocalyptic number.

2586940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2586940 is an abundant number, since it is smaller than the sum of its proper divisors (2845676).

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

2586940 is a wasteful number, since it uses less digits than its factorization.

2586940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129356 (or 129354 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2586940 is about 1608.3967172312. The cubic root of 2586940 is about 137.2762642407.

The spelling of 2586940 in words is "two million, five hundred eighty-six thousand, nine hundred forty".