542610642 has 16 divisors (see below), whose sum is σ = 1240252992. Its totient is φ = 155031600.

The previous prime is 542610637. The next prime is 542610643. The reversal of 542610642 is 246016245.

It is not an unprimeable number, because it can be changed into a prime (542610643) 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, 6459609 + ... + 6459692.

It is an arithmetic number, because the mean of its divisors is an integer number (77515812).

Almost surely, 2^542610642 is an apocalyptic number.

542610642 is an abundant number, since it is smaller than the sum of its proper divisors (697642350).

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

542610642 is a wasteful number, since it uses less digits than its factorization.

542610642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12919313.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 542610642 is about 23294.0044217391. The cubic root of 542610642 is about 815.6354671019.

Adding to 542610642 its reverse (246016245), we get a palindrome (788626887).

The spelling of 542610642 in words is "five hundred forty-two million, six hundred ten thousand, six hundred forty-two".