1283842880 has 42 divisors (see below), whose sum is σ = 3058677906. Its totient is φ = 513280768.

The previous prime is 1283842867. The next prime is 1283842883. The reversal of 1283842880 is 882483821.

It can be written as a sum of positive squares in only one way, i.e., 1027074304 + 256768576 = 32048^2 + 16024^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283842883) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 639959 + ... + 641961.

Almost surely, 2^1283842880 is an apocalyptic number.

1283842880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1283842880 is an abundant number, since it is smaller than the sum of its proper divisors (1774835026).

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

1283842880 is an frugal number, since it uses more digits than its factorization.

1283842880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4023 (or 2010 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 44.

The square root of 1283842880 is about 35830.7532714566. The cubic root of 1283842880 is about 1086.8525424236.

The spelling of 1283842880 in words is "one billion, two hundred eighty-three million, eight hundred forty-two thousand, eight hundred eighty".