1142760 has 64 divisors (see below), whose sum is σ = 3499200. Its totient is φ = 298496.

The previous prime is 1142759. The next prime is 1142773. The reversal of 1142760 is 672411.

It is a Cunningham number, because it is equal to 1069²-1.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10627 + ... + 10733.

It is an arithmetic number, because the mean of its divisors is an integer number (54675).

2^1142760 is an apocalyptic number.

1142760 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 1142760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1749600).

1142760 is an abundant number, since it is smaller than the sum of its proper divisors (2356440).

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

1142760 is a wasteful number, since it uses less digits than its factorization.

1142760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 1142760 is about 1068.9995322731. Note that the first 3 decimals coincide. The cubic root of 1142760 is about 104.5486293359.

The spelling of 1142760 in words is "one million, one hundred forty-two thousand, seven hundred sixty".