1087842 has 32 divisors (see below), whose sum is σ = 2534400. Its totient is φ = 304848.

The previous prime is 1087841. The next prime is 1087843. The reversal of 1087842 is 2487801.

1087842 is nontrivially palindromic in base 13.

It is an interprime number because it is at equal distance from previous prime (1087841) and next prime (1087843).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2259 + ... + 2697.

It is an arithmetic number, because the mean of its divisors is an integer number (79200).

2^1087842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1087842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1267200).

1087842 is an abundant number, since it is smaller than the sum of its proper divisors (1446558).

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

1087842 is a wasteful number, since it uses less digits than its factorization.

1087842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 1087842 is about 1042.9966442899. The cubic root of 1087842 is about 102.8462846783.

The spelling of 1087842 in words is "one million, eighty-seven thousand, eight hundred forty-two".