1340554 has 12 divisors (see below), whose sum is σ = 2085174. Its totient is φ = 646352.

The previous prime is 1340527. The next prime is 1340557. The reversal of 1340554 is 4550431.

It can be written as a sum of positive squares in 3 ways, for example, as 1159929 + 180625 = 1077^2 + 425^2 .

It is not an unprimeable number, because it can be changed into a prime (1340557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1284 + ... + 2080.

2^1340554 is an apocalyptic number.

1340554 is a deficient number, since it is larger than the sum of its proper divisors (744620).

1340554 is an equidigital number, since it uses as much as digits as its factorization.

1340554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1340554 is about 1157.8229571053. The cubic root of 1340554 is about 110.2625683469.

Adding to 1340554 its reverse (4550431), we get a palindrome (5890985).

The spelling of 1340554 in words is "one million, three hundred forty thousand, five hundred fifty-four".