1283797760 has 72 divisors (see below), whose sum is σ = 3514420896. Its totient is φ = 440156160.

The previous prime is 1283797703. The next prime is 1283797771. The reversal of 1283797760 is 677973821.

It is a junction number, because it is equal to n+sod(n) for n = 1283797699 and 1283797708.

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, 62681 + ... + 80600.

Almost surely, 2^1283797760 is an apocalyptic number.

1283797760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1283797760 is an abundant number, since it is smaller than the sum of its proper divisors (2230623136).

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

1283797760 is an equidigital number, since it uses as much as digits as its factorization.

1283797760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143309 (or 143295 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 50.

The square root of 1283797760 is about 35830.1236391950. The cubic root of 1283797760 is about 1086.8398099826.

The spelling of 1283797760 in words is "one billion, two hundred eighty-three million, seven hundred ninety-seven thousand, seven hundred sixty".