542432444 has 24 divisors (see below), whose sum is σ = 1022461440. Its totient is φ = 250964784.

The previous prime is 542432441. The next prime is 542432459. The reversal of 542432444 is 444234245.

It is a self number, because there is not a number n which added to its sum of digits gives 542432444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542432441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79724 + ... + 86259.

It is an arithmetic number, because the mean of its divisors is an integer number (42602560).

Almost surely, 2^542432444 is an apocalyptic number.

It is an amenable number.

542432444 is a deficient number, since it is larger than the sum of its proper divisors (480028996).

542432444 is a wasteful number, since it uses less digits than its factorization.

542432444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166049 (or 166047 counting only the distinct ones).

The product of its digits is 61440, while the sum is 32.

The square root of 542432444 is about 23290.1791319861. The cubic root of 542432444 is about 815.5461700926.

Adding to 542432444 its reverse (444234245), we get a palindrome (986666689).

The spelling of 542432444 in words is "five hundred forty-two million, four hundred thirty-two thousand, four hundred forty-four".