542020080 has 80 divisors (see below), whose sum is σ = 1920305664. Its totient is φ = 123889920.

The previous prime is 542020033. The next prime is 542020091. The reversal of 542020080 is 80020245.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159636 + ... + 162995.

Almost surely, 2^542020080 is an apocalyptic number.

It is an amenable number.

542020080 is an abundant number, since it is smaller than the sum of its proper divisors (1378285584).

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

542020080 is a wasteful number, since it uses less digits than its factorization.

542020080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322654 (or 322648 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 542020080 is about 23281.3247045781. The cubic root of 542020080 is about 815.3394548657.

The spelling of 542020080 in words is "five hundred forty-two million, twenty thousand, eighty".