1142442 has 24 divisors (see below), whose sum is σ = 2829216. Its totient is φ = 326376.

The previous prime is 1142431. The next prime is 1142473. The reversal of 1142442 is 2442411.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4408 + ... + 4659.

It is an arithmetic number, because the mean of its divisors is an integer number (117884).

2^1142442 is an apocalyptic number.

1142442 is an abundant number, since it is smaller than the sum of its proper divisors (1686774).

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

1142442 is a wasteful number, since it uses less digits than its factorization.

1142442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9082 (or 9079 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 1142442 is about 1068.8507847216. The cubic root of 1142442 is about 104.5389307266.

Adding to 1142442 its reverse (2442411), we get a palindrome (3584853).

It can be divided in two parts, 114 and 2442, that added together give a triangular number (2556 = T₇₁).

The spelling of 1142442 in words is "one million, one hundred forty-two thousand, four hundred forty-two".