1280876450 has 48 divisors (see below), whose sum is σ = 2866096320. Its totient is φ = 416041920.

The previous prime is 1280876413. The next prime is 1280876461. The reversal of 1280876450 is 546780821.

It is a junction number, because it is equal to n+sod(n) for n = 1280876398 and 1280876407.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89657 + ... + 102956.

It is an arithmetic number, because the mean of its divisors is an integer number (59710340).

Almost surely, 2^1280876450 is an apocalyptic number.

1280876450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1280876450 is an abundant number, since it is smaller than the sum of its proper divisors (1585219870).

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

1280876450 is a wasteful number, since it uses less digits than its factorization.

1280876450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192651 (or 192646 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 1280876450 is about 35789.3343050692. The cubic root of 1280876450 is about 1086.0148079428.

The spelling of 1280876450 in words is "one billion, two hundred eighty million, eight hundred seventy-six thousand, four hundred fifty".