1270655320 has 64 divisors (see below), whose sum is σ = 3143577600. Its totient is φ = 458398080.

The previous prime is 1270655317. The next prime is 1270655333. The reversal of 1270655320 is 235560721.

It is a super-2 number, since 2×1270655320² = 3229129884488604800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44511 + ... + 67249.

It is an arithmetic number, because the mean of its divisors is an integer number (49118400).

Almost surely, 2^1270655320 is an apocalyptic number.

1270655320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1270655320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1571788800).

1270655320 is an abundant number, since it is smaller than the sum of its proper divisors (1872922280).

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

1270655320 is a wasteful number, since it uses less digits than its factorization.

1270655320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22888 (or 22884 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 1270655320 is about 35646.2525379597. The cubic root of 1270655320 is about 1083.1183651306.

The spelling of 1270655320 in words is "one billion, two hundred seventy million, six hundred fifty-five thousand, three hundred twenty".