1142080 has 56 divisors (see below), whose sum is σ = 2816352. Its totient is φ = 440832.

The previous prime is 1142069. The next prime is 1142083. The reversal of 1142080 is 802411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13719 + ... + 13801.

It is an arithmetic number, because the mean of its divisors is an integer number (50292).

2^1142080 is an apocalyptic number.

1142080 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 1142080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1408176).

1142080 is an abundant number, since it is smaller than the sum of its proper divisors (1674272).

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

1142080 is an equidigital number, since it uses as much as digits as its factorization.

1142080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1142080 is about 1068.6814305489. The cubic root of 1142080 is about 104.5278879805.

Adding to 1142080 its reverse (802411), we get a palindrome (1944491).

The spelling of 1142080 in words is "one million, one hundred forty-two thousand, eighty".