542868929 has 4 divisors (see below), whose sum is σ = 544057284. Its totient is φ = 541680576.

The previous prime is 542868917. The next prime is 542868943. The reversal of 542868929 is 929868245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 316306225 + 226562704 = 17785^2 + 15052^2 .

It is a cyclic number.

It is not a de Polignac number, because 542868929 - 2²⁰ = 541820353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542868959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593492 + ... + 594405.

It is an arithmetic number, because the mean of its divisors is an integer number (136014321).

Almost surely, 2^542868929 is an apocalyptic number.

It is an amenable number.

542868929 is a deficient number, since it is larger than the sum of its proper divisors (1188355).

542868929 is a wasteful number, since it uses less digits than its factorization.

542868929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188354.

The product of its digits is 2488320, while the sum is 53.

The square root of 542868929 is about 23299.5478282305. The cubic root of 542868929 is about 815.7648629055.

The spelling of 542868929 in words is "five hundred forty-two million, eight hundred sixty-eight thousand, nine hundred twenty-nine".