1270395320 has 32 divisors (see below), whose sum is σ = 2871227520. Its totient is φ = 505875840.

The previous prime is 1270395277. The next prime is 1270395331. The reversal of 1270395320 is 235930721.

It is a super-2 number, since 2×1270395320² = 3227808538155804800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 62291 + ... + 80130.

It is an arithmetic number, because the mean of its divisors is an integer number (89725860).

Almost surely, 2^1270395320 is an apocalyptic number.

1270395320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1270395320 is an abundant number, since it is smaller than the sum of its proper divisors (1600832200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1270395320 is a wasteful number, since it uses less digits than its factorization.

1270395320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142655 (or 142651 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 1270395320 is about 35642.6054042069. The cubic root of 1270395320 is about 1083.0444846217.

The spelling of 1270395320 in words is "one billion, two hundred seventy million, three hundred ninety-five thousand, three hundred twenty".