1340650 has 12 divisors (see below), whose sum is σ = 2493702. Its totient is φ = 536240.

The previous prime is 1340639. The next prime is 1340653. The reversal of 1340650 is 560431.

It can be written as a sum of positive squares in 3 ways, for example, as 1129969 + 210681 = 1063^2 + 459^2 .

It is not an unprimeable number, because it can be changed into a prime (1340653) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 13357 + ... + 13456.

2^1340650 is an apocalyptic number.

1340650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340650 is a deficient number, since it is larger than the sum of its proper divisors (1153052).

1340650 is a wasteful number, since it uses less digits than its factorization.

1340650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26825 (or 26820 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1340650 is about 1157.8644134785. The cubic root of 1340650 is about 110.2652003319.

It can be divided in two parts, 13406 and 50, that added together give a square (13456 = 116²).

The spelling of 1340650 in words is "one million, three hundred forty thousand, six hundred fifty".