1280988348 has 24 divisors (see below), whose sum is σ = 3092041680. Its totient is φ = 412272000.

The previous prime is 1280988307. The next prime is 1280988407. The reversal of 1280988348 is 8438890821.

It is a happy number.

It is a super-2 number, since 2×1280988348² = 3281862295423538208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1280988348.

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, 1840153 + ... + 1840848.

It is an arithmetic number, because the mean of its divisors is an integer number (128835070).

Almost surely, 2^1280988348 is an apocalyptic number.

It is an amenable number.

1280988348 is an abundant number, since it is smaller than the sum of its proper divisors (1811053332).

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

1280988348 is a wasteful number, since it uses less digits than its factorization.

1280988348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3681037 (or 3681035 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 51.

The square root of 1280988348 is about 35790.8975578987. The cubic root of 1280988348 is about 1086.0464319521.

The spelling of 1280988348 in words is "one billion, two hundred eighty million, nine hundred eighty-eight thousand, three hundred forty-eight".