1142844 has 24 divisors (see below), whose sum is σ = 2690688. Its totient is φ = 377520.

The previous prime is 1142837. The next prime is 1142851. The reversal of 1142844 is 4482411.

It is an interprime number because it is at equal distance from previous prime (1142837) and next prime (1142851).

It is a congruent number.

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, 1209 + ... + 1935.

It is an arithmetic number, because the mean of its divisors is an integer number (112112).

2^1142844 is an apocalyptic number.

It is an amenable number.

1142844 is an abundant number, since it is smaller than the sum of its proper divisors (1547844).

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

1142844 is a wasteful number, since it uses less digits than its factorization.

1142844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 863 counting only the distinct ones).

The product of its digits is 1024, while the sum is 24.

The square root of 1142844 is about 1069.0388206235. The cubic root of 1142844 is about 104.5511909323.

It can be divided in two parts, 1 and 142844, that added together give a triangular number (142845 = T₅₃₄).

The spelling of 1142844 in words is "one million, one hundred forty-two thousand, eight hundred forty-four".