1042540 has 12 divisors (see below), whose sum is σ = 2189376. Its totient is φ = 417008.

The previous prime is 1042529. The next prime is 1042571. The reversal of 1042540 is 452401.

It is an Ulam number.

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, 26044 + ... + 26083.

It is an arithmetic number, because the mean of its divisors is an integer number (182448).

2^1042540 is an apocalyptic number.

1042540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042540 is an abundant number, since it is smaller than the sum of its proper divisors (1146836).

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

1042540 is a wasteful number, since it uses less digits than its factorization.

1042540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52136 (or 52134 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1042540 is about 1021.0484807295. The cubic root of 1042540 is about 101.3983548914.

Adding to 1042540 its reverse (452401), we get a palindrome (1494941).

The spelling of 1042540 in words is "one million, forty-two thousand, five hundred forty".