1270385 has 8 divisors (see below), whose sum is σ = 1561896. Its totient is φ = 991360.

The previous prime is 1270361. The next prime is 1270391. The reversal of 1270385 is 5830721.

1270385 is nontrivially palindromic in base 4.

It can be written as a sum of positive squares in 4 ways, for example, as 256 + 1270129 = 16^2 + 1127^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-1270385 is a prime.

It is a super-2 number, since 2×1270385² = 3227756096450, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2894 + ... + 3303.

It is an arithmetic number, because the mean of its divisors is an integer number (195237).

2^1270385 is an apocalyptic number.

It is an amenable number.

1270385 is a deficient number, since it is larger than the sum of its proper divisors (291511).

1270385 is an equidigital number, since it uses as much as digits as its factorization.

1270385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6243.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1270385 is about 1127.1135701428. The cubic root of 1270385 is about 108.3041551926.

The spelling of 1270385 in words is "one million, two hundred seventy thousand, three hundred eighty-five".