542866631 has 8 divisors (see below), whose sum is σ = 586003680. Its totient is φ = 501357472.

The previous prime is 542866619. The next prime is 542866657. The reversal of 542866631 is 136668245.

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 542866631 - 2⁶ = 542866567 is a prime.

It is a super-2 number, since 2×542866631² = 589408358106580322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542863631) 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, 406280 + ... + 407613.

It is an arithmetic number, because the mean of its divisors is an integer number (73250460).

Almost surely, 2^542866631 is an apocalyptic number.

542866631 is a deficient number, since it is larger than the sum of its proper divisors (43137049).

542866631 is a wasteful number, since it uses less digits than its factorization.

542866631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813945.

The product of its digits is 207360, while the sum is 41.

The square root of 542866631 is about 23299.4985139166. The cubic root of 542866631 is about 815.7637118417.

The spelling of 542866631 in words is "five hundred forty-two million, eight hundred sixty-six thousand, six hundred thirty-one".