1042542 has 24 divisors (see below), whose sum is σ = 2392416. Its totient is φ = 326976.

The previous prime is 1042529. The next prime is 1042571. The reversal of 1042542 is 2452401.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1398 + ... + 2009.

It is an arithmetic number, because the mean of its divisors is an integer number (99684).

2^1042542 is an apocalyptic number.

1042542 is an abundant number, since it is smaller than the sum of its proper divisors (1349874).

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

1042542 is a wasteful number, since it uses less digits than its factorization.

1042542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432 (or 3429 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1042542 is about 1021.0494601144. The cubic root of 1042542 is about 101.3984197319.

Adding to 1042542 its reverse (2452401), we get a palindrome (3494943).

The spelling of 1042542 in words is "one million, forty-two thousand, five hundred forty-two".