542840664 has 32 divisors (see below), whose sum is σ = 1416107520. Its totient is φ = 173079456.

The previous prime is 542840663. The next prime is 542840671. The reversal of 542840664 is 466048245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542840663) 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, 491152 + ... + 492255.

It is an arithmetic number, because the mean of its divisors is an integer number (44253360).

Almost surely, 2^542840664 is an apocalyptic number.

It is an amenable number.

542840664 is an abundant number, since it is smaller than the sum of its proper divisors (873266856).

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

542840664 is a wasteful number, since it uses less digits than its factorization.

542840664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983439 (or 983435 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

The square root of 542840664 is about 23298.9412634995. The cubic root of 542840664 is about 815.7507047955.

The spelling of 542840664 in words is "five hundred forty-two million, eight hundred forty thousand, six hundred sixty-four".