1270816 has 24 divisors (see below), whose sum is σ = 2528064. Its totient is φ = 628800.

The previous prime is 1270771. The next prime is 1270817. The reversal of 1270816 is 6180721.

It is a super-2 number, since 2×1270816² = 3229946611712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1270817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4701 + ... + 4963.

It is an arithmetic number, because the mean of its divisors is an integer number (105336).

2^1270816 is an apocalyptic number.

1270816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1270816 is a deficient number, since it is larger than the sum of its proper divisors (1257248).

1270816 is a wasteful number, since it uses less digits than its factorization.

1270816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1270816 is about 1127.3047502783. The cubic root of 1270816 is about 108.3164018246.

The spelling of 1270816 in words is "one million, two hundred seventy thousand, eight hundred sixteen".