242404542 has 16 divisors (see below), whose sum is σ = 538676880. Its totient is φ = 80801496.

The previous prime is 242404529. The next prime is 242404553. The reversal of 242404542 is 245404242.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2244433 + ... + 2244540.

It is an arithmetic number, because the mean of its divisors is an integer number (33667305).

Almost surely, 2^242404542 is an apocalyptic number.

242404542 is an abundant number, since it is smaller than the sum of its proper divisors (296272338).

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

242404542 is a wasteful number, since it uses less digits than its factorization.

242404542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488984 (or 4488978 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 242404542 is about 15569.3462290489. The cubic root of 242404542 is about 623.5150170219.

Adding to 242404542 its reverse (245404242), we get a palindrome (487808784).

It can be divided in two parts, 24240 and 4542, that added together give a palindrome (28782).

The spelling of 242404542 in words is "two hundred forty-two million, four hundred four thousand, five hundred forty-two".