1092640 has 24 divisors (see below), whose sum is σ = 2581740. Its totient is φ = 436992.

The previous prime is 1092629. The next prime is 1092643. The reversal of 1092640 is 462901.

It can be written as a sum of positive squares in 2 ways, for example, as 1089936 + 2704 = 1044^2 + 52^2 .

It is not an unprimeable number, because it can be changed into a prime (1092643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3255 + ... + 3574.

2^1092640 is an apocalyptic number.

1092640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1092640 is an abundant number, since it is smaller than the sum of its proper divisors (1489100).

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

1092640 is an equidigital number, since it uses as much as digits as its factorization.

1092640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6844 (or 6836 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1092640 is about 1045.2942169552. The cubic root of 1092640 is about 102.9972663993.

The spelling of 1092640 in words is "one million, ninety-two thousand, six hundred forty".