1095640 has 96 divisors (see below), whose sum is σ = 3160080. Its totient is φ = 338688.

The previous prime is 1095631. The next prime is 1095671. The reversal of 1095640 is 465901.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25459 + ... + 25501.

2^1095640 is an apocalyptic number.

1095640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1095640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1580040).

1095640 is an abundant number, since it is smaller than the sum of its proper divisors (2064440).

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

1095640 is a wasteful number, since it uses less digits than its factorization.

1095640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1095640 is about 1046.7282359810. The cubic root of 1095640 is about 103.0914448527.

The spelling of 1095640 in words is "one million, ninety-five thousand, six hundred forty".