1204542 has 12 divisors (see below), whose sum is σ = 2609880. Its totient is φ = 401508.

The previous prime is 1204529. The next prime is 1204561. The reversal of 1204542 is 2454021.

1204542 is a `hidden beast` number, since 120 + 4 + 542 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 66919 = 1204542 / (1 + 2 + 0 + 4 + 5 + 4 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33442 + ... + 33477.

It is an arithmetic number, because the mean of its divisors is an integer number (217490).

2^1204542 is an apocalyptic number.

1204542 is an abundant number, since it is smaller than the sum of its proper divisors (1405338).

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

1204542 is a wasteful number, since it uses less digits than its factorization.

1204542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66927 (or 66924 counting only the distinct ones).

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

The square root of 1204542 is about 1097.5162868951. The cubic root of 1204542 is about 106.3997602083.

Adding to 1204542 its reverse (2454021), we get a palindrome (3658563).

The spelling of 1204542 in words is "one million, two hundred four thousand, five hundred forty-two".