1283760 has 60 divisors (see below), whose sum is σ = 4313712. Its totient is φ = 342144.

The previous prime is 1283759. The next prime is 1283767. The reversal of 1283760 is 673821.

It is a tau number, because it is divible by the number of its divisors (60).

It is not an unprimeable number, because it can be changed into a prime (1283767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172 + ... + 1611.

2^1283760 is an apocalyptic number.

1283760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1283760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2156856).

1283760 is an abundant number, since it is smaller than the sum of its proper divisors (3029952).

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

1283760 is a wasteful number, since it uses less digits than its factorization.

1283760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802 (or 1793 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1283760 is about 1133.0313323117. The cubic root of 1283760 is about 108.6829154235.

The spelling of 1283760 in words is "one million, two hundred eighty-three thousand, seven hundred sixty".