1340530 has 8 divisors (see below), whose sum is σ = 2412972. Its totient is φ = 536208.

The previous prime is 1340527. The next prime is 1340557. The reversal of 1340530 is 350431.

It can be written as a sum of positive squares in 2 ways, for example, as 1238769 + 101761 = 1113^2 + 319^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67017 + ... + 67036.

2^1340530 is an apocalyptic number.

1340530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340530 is a deficient number, since it is larger than the sum of its proper divisors (1072442).

1340530 is a wasteful number, since it uses less digits than its factorization.

1340530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134060.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 1340530 is about 1157.8125927800. The cubic root of 1340530 is about 110.2619103310.

Adding to 1340530 its reverse (350431), we get a palindrome (1690961).

Subtracting from 1340530 its reverse (350431), we obtain a palindrome (990099).

The spelling of 1340530 in words is "one million, three hundred forty thousand, five hundred thirty".