542643606 has 24 divisors (see below), whose sum is σ = 1181890944. Its totient is φ = 179933040.

The previous prime is 542643601. The next prime is 542643637. The reversal of 542643606 is 606346245.

542643606 is a `hidden beast` number, since 5 + 4 + 2 + 6 + 43 + 606 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542643601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75481 + ... + 82356.

It is an arithmetic number, because the mean of its divisors is an integer number (49245456).

Almost surely, 2^542643606 is an apocalyptic number.

542643606 is an abundant number, since it is smaller than the sum of its proper divisors (639247338).

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

542643606 is a wasteful number, since it uses less digits than its factorization.

542643606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158036 (or 158033 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 542643606 is about 23294.7119750385. The cubic root of 542643606 is about 815.6519835878.

The spelling of 542643606 in words is "five hundred forty-two million, six hundred forty-three thousand, six hundred six".