1142816 has 24 divisors (see below), whose sum is σ = 2286144. Its totient is φ = 562240.

The previous prime is 1142809. The next prime is 1142821. The reversal of 1142816 is 6182411.

It is a junction number, because it is equal to n+sod(n) for n = 1142791 and 1142800.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2021 + ... + 2523.

It is an arithmetic number, because the mean of its divisors is an integer number (95256).

2^1142816 is an apocalyptic number.

1142816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1142816 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1142816 is an equidigital number, since it uses as much as digits as its factorization.

1142816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584 (or 576 counting only the distinct ones).

The product of its digits is 384, while the sum is 23.

The square root of 1142816 is about 1069.0257246671. The cubic root of 1142816 is about 104.5503370808.

The spelling of 1142816 in words is "one million, one hundred forty-two thousand, eight hundred sixteen".