542432440 has 32 divisors (see below), whose sum is σ = 1331426160. Its totient is φ = 197248000.

The previous prime is 542432417. The next prime is 542432441. The reversal of 542432440 is 44234245.

It is a junction number, because it is equal to n+sod(n) for n = 542432399 and 542432408.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615961 + ... + 616840.

Almost surely, 2^542432440 is an apocalyptic number.

It is an amenable number.

542432440 is an abundant number, since it is smaller than the sum of its proper divisors (788993720).

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

542432440 is a wasteful number, since it uses less digits than its factorization.

542432440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232823 (or 1232819 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 542432440 is about 23290.1790461130. The cubic root of 542432440 is about 815.5461680879.

Adding to 542432440 its reverse (44234245), we get a palindrome (586666685).

The spelling of 542432440 in words is "five hundred forty-two million, four hundred thirty-two thousand, four hundred forty".