1093640 has 32 divisors (see below), whose sum is σ = 2592000. Its totient is φ = 414144.

The previous prime is 1093639. The next prime is 1093657. The reversal of 1093640 is 463901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41 + ... + 1479.

It is an arithmetic number, because the mean of its divisors is an integer number (81000).

2^1093640 is an apocalyptic number.

1093640 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 1093640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1296000).

1093640 is an abundant number, since it is smaller than the sum of its proper divisors (1498360).

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

1093640 is a wasteful number, since it uses less digits than its factorization.

1093640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469 (or 1465 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1093640 is about 1045.7724417865. The cubic root of 1093640 is about 103.0286783498.

The spelling of 1093640 in words is "one million, ninety-three thousand, six hundred forty".