1090340 has 12 divisors (see below), whose sum is σ = 2289756. Its totient is φ = 436128.

The previous prime is 1090333. The next prime is 1090373. The reversal of 1090340 is 430901.

It can be written as a sum of positive squares in 2 ways, for example, as 732736 + 357604 = 856^2 + 598^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27239 + ... + 27278.

It is an arithmetic number, because the mean of its divisors is an integer number (190813).

2^1090340 is an apocalyptic number.

1090340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1090340 is an abundant number, since it is smaller than the sum of its proper divisors (1199416).

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

1090340 is a wasteful number, since it uses less digits than its factorization.

1090340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54526 (or 54524 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1090340 is about 1044.1934686637. The cubic root of 1090340 is about 102.9249461086.

The spelling of 1090340 in words is "one million, ninety thousand, three hundred forty".