2587942 has 32 divisors (see below), whose sum is σ = 4700160. Its totient is φ = 1045440.

The previous prime is 2587939. The next prime is 2587943. The reversal of 2587942 is 2497852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2587943) 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 15 ways as a sum of consecutive naturals, for example, 29034 + ... + 29122.

It is an arithmetic number, because the mean of its divisors is an integer number (146880).

2^2587942 is an apocalyptic number.

2587942 is a deficient number, since it is larger than the sum of its proper divisors (2112218).

2587942 is a wasteful number, since it uses less digits than its factorization.

2587942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196.

The product of its digits is 40320, while the sum is 37.

The square root of 2587942 is about 1608.7081773895. The cubic root of 2587942 is about 137.2939857007.

Adding to 2587942 its product of digits (40320), we get a palindrome (2628262).

It can be divided in two parts, 25879 and 42, that added together give a square (25921 = 161²).

The spelling of 2587942 in words is "two million, five hundred eighty-seven thousand, nine hundred forty-two".