542542432 has 48 divisors (see below), whose sum is σ = 1097433792. Its totient is φ = 263900160.

The previous prime is 542542409. The next prime is 542542459. The reversal of 542542432 is 234245245.

It is a junction number, because it is equal to n+sod(n) for n = 542542394 and 542542403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271228 + ... + 273220.

It is an arithmetic number, because the mean of its divisors is an integer number (22863204).

Almost surely, 2^542542432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542542432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548716896).

542542432 is an abundant number, since it is smaller than the sum of its proper divisors (554891360).

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

542542432 is a wasteful number, since it uses less digits than its factorization.

542542432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231 (or 2223 counting only the distinct ones).

The product of its digits is 38400, while the sum is 31.

The square root of 542542432 is about 23292.5402650720. The cubic root of 542542432 is about 815.6012886184.

Adding to 542542432 its reverse (234245245), we get a palindrome (776787677).

The spelling of 542542432 in words is "five hundred forty-two million, five hundred forty-two thousand, four hundred thirty-two".