1270409 has 8 divisors (see below), whose sum is σ = 1467648. Its totient is φ = 1077120.

The previous prime is 1270391. The next prime is 1270417. The reversal of 1270409 is 9040721.

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

It is a cyclic number.

It is not a de Polignac number, because 1270409 - 2¹⁶ = 1204873 is a prime.

It is a super-2 number, since 2×1270409² = 3227878054562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1270429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257 + ... + 1614.

It is an arithmetic number, because the mean of its divisors is an integer number (183456).

2^1270409 is an apocalyptic number.

It is an amenable number.

1270409 is a deficient number, since it is larger than the sum of its proper divisors (197239).

1270409 is an equidigital number, since it uses as much as digits as its factorization.

1270409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1270409 is about 1127.1242167570. The cubic root of 1270409 is about 108.3048372124.

The spelling of 1270409 in words is "one million, two hundred seventy thousand, four hundred nine".