1340258 has 4 divisors (see below), whose sum is σ = 2010390. Its totient is φ = 670128.

The previous prime is 1340243. The next prime is 1340281. The reversal of 1340258 is 8520431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1315609 + 24649 = 1147^2 + 157^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335063 + ... + 335066.

2^1340258 is an apocalyptic number.

1340258 is a deficient number, since it is larger than the sum of its proper divisors (670132).

1340258 is an equidigital number, since it uses as much as digits as its factorization.

1340258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670131.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1340258 is about 1157.6951239424. The cubic root of 1340258 is about 110.2544522689.

Adding to 1340258 its reverse (8520431), we get a palindrome (9860689).

The spelling of 1340258 in words is "one million, three hundred forty thousand, two hundred fifty-eight".