1270998648 has 32 divisors (see below), whose sum is σ = 3530552400. Its totient is φ = 423666144.

The previous prime is 1270998611. The next prime is 1270998661. The reversal of 1270998648 is 8468990721.

1270998648 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1270998594 and 1270998603.

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, 2941911 + ... + 2942342.

Almost surely, 2^1270998648 is an apocalyptic number.

1270998648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1270998648 is an abundant number, since it is smaller than the sum of its proper divisors (2259553752).

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

1270998648 is a wasteful number, since it uses less digits than its factorization.

1270998648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5884268 (or 5884258 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 1270998648 is about 35651.0679783930. The cubic root of 1270998648 is about 1083.2159083350.

The spelling of 1270998648 in words is "one billion, two hundred seventy million, nine hundred ninety-eight thousand, six hundred forty-eight".