542347644 has 24 divisors (see below), whose sum is σ = 1267978320. Its totient is φ = 180425344.

The previous prime is 542347627. The next prime is 542347657. The reversal of 542347644 is 446743245.

It is a congruent number.

It is an unprimeable number.

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, 38289 + ... + 50504.

It is an arithmetic number, because the mean of its divisors is an integer number (52832430).

Almost surely, 2^542347644 is an apocalyptic number.

It is an amenable number.

542347644 is an abundant number, since it is smaller than the sum of its proper divisors (725630676).

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

542347644 is a wasteful number, since it uses less digits than its factorization.

542347644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89309 (or 89307 counting only the distinct ones).

The product of its digits is 322560, while the sum is 39.

The square root of 542347644 is about 23288.3585510014. The cubic root of 542347644 is about 815.5036689970.

The spelling of 542347644 in words is "five hundred forty-two million, three hundred forty-seven thousand, six hundred forty-four".