1270256770 has 16 divisors (see below), whose sum is σ = 2308662720. Its totient is φ = 503169264.

The previous prime is 1270256759. The next prime is 1270256773. The reversal of 1270256770 is 776520721.

It is a super-2 number, since 2×1270256770² = 3227104523461665800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1270256773) 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, 615600 + ... + 617659.

It is an arithmetic number, because the mean of its divisors is an integer number (144291420).

Almost surely, 2^1270256770 is an apocalyptic number.

1270256770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1270256770 is a deficient number, since it is larger than the sum of its proper divisors (1038405950).

1270256770 is a wasteful number, since it uses less digits than its factorization.

1270256770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233369.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 1270256770 is about 35640.6617503099. The cubic root of 1270256770 is about 1083.0051107181.

The spelling of 1270256770 in words is "one billion, two hundred seventy million, two hundred fifty-six thousand, seven hundred seventy".