542322432 has 144 divisors (see below), whose sum is σ = 1656130560. Its totient is φ = 174873600.

The previous prime is 542322427. The next prime is 542322433. The reversal of 542322432 is 234223245.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×542322432² = 588227240500789248, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 542322396 and 542322405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542322433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213007 + ... + 215537.

Almost surely, 2^542322432 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 542322432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (828065280).

542322432 is an abundant number, since it is smaller than the sum of its proper divisors (1113808128).

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

542322432 is a wasteful number, since it uses less digits than its factorization.

542322432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587 (or 2567 counting only the distinct ones).

The product of its digits is 11520, while the sum is 27.

The square root of 542322432 is about 23287.8172442159. The cubic root of 542322432 is about 815.4910320858.

Adding to 542322432 its reverse (234223245), we get a palindrome (776545677).

The spelling of 542322432 in words is "five hundred forty-two million, three hundred twenty-two thousand, four hundred thirty-two".