542909680 has 20 divisors (see below), whose sum is σ = 1262265192. Its totient is φ = 217163840.

The previous prime is 542909677. The next prime is 542909683. The reversal of 542909680 is 86909245.

It is an interprime number because it is at equal distance from previous prime (542909677) and next prime (542909683).

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542909683) 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 3 ways as a sum of consecutive naturals, for example, 3393106 + ... + 3393265.

Almost surely, 2^542909680 is an apocalyptic number.

It is an amenable number.

542909680 is an abundant number, since it is smaller than the sum of its proper divisors (719355512).

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

542909680 is a wasteful number, since it uses less digits than its factorization.

542909680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6786384 (or 6786378 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 542909680 is about 23300.4223137693. The cubic root of 542909680 is about 815.7852744637.

The spelling of 542909680 in words is "five hundred forty-two million, nine hundred nine thousand, six hundred eighty".