542674639 has 8 divisors (see below), whose sum is σ = 585336752. Its totient is φ = 500143680.

The previous prime is 542674633. The next prime is 542674669. The reversal of 542674639 is 936476245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 542674639 - 2⁷ = 542674511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542674633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24102 + ... + 40819.

It is an arithmetic number, because the mean of its divisors is an integer number (73167094).

Almost surely, 2^542674639 is an apocalyptic number.

542674639 is a deficient number, since it is larger than the sum of its proper divisors (42662113).

542674639 is a wasteful number, since it uses less digits than its factorization.

542674639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65577.

The product of its digits is 1088640, while the sum is 46.

The square root of 542674639 is about 23295.3780608944. The cubic root of 542674639 is about 815.6675319424.

The spelling of 542674639 in words is "five hundred forty-two million, six hundred seventy-four thousand, six hundred thirty-nine".