542310642 has 48 divisors (see below), whose sum is σ = 1258166520. Its totient is φ = 168216576.

The previous prime is 542310641. The next prime is 542310677. The reversal of 542310642 is 246013245.

542310642 is a `hidden beast` number, since 5 + 4 + 2 + 3 + 10 + 642 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 302029641 + 240281001 = 17379^2 + 15501^2 .

It is not an unprimeable number, because it can be changed into a prime (542310641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17278 + ... + 37190.

Almost surely, 2^542310642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542310642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (629083260).

542310642 is an abundant number, since it is smaller than the sum of its proper divisors (715855878).

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

542310642 is a wasteful number, since it uses less digits than its factorization.

542310642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20027 (or 20024 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 542310642 is about 23287.5641061920. The cubic root of 542310642 is about 815.4851224962.

Adding to 542310642 its reverse (246013245), we get a palindrome (788323887).

The spelling of 542310642 in words is "five hundred forty-two million, three hundred ten thousand, six hundred forty-two".