542072869 has 16 divisors (see below), whose sum is σ = 617198400. Its totient is φ = 471954816.

The previous prime is 542072857. The next prime is 542072893. The reversal of 542072869 is 968270245.

It is a cyclic number.

It is not a de Polignac number, because 542072869 - 2¹⁵ = 542040101 is a prime.

It is a super-2 number, since 2×542072869² = 587685990611782322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542072819) 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 15 ways as a sum of consecutive naturals, for example, 52842 + ... + 62260.

It is an arithmetic number, because the mean of its divisors is an integer number (38574900).

Almost surely, 2^542072869 is an apocalyptic number.

It is an amenable number.

542072869 is a deficient number, since it is larger than the sum of its proper divisors (75125531).

542072869 is a wasteful number, since it uses less digits than its factorization.

542072869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9684.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 542072869 is about 23282.4583968274. The cubic root of 542072869 is about 815.3659234775.

The spelling of 542072869 in words is "five hundred forty-two million, seventy-two thousand, eight hundred sixty-nine".