542640272 has 30 divisors (see below), whose sum is σ = 1116858018. Its totient is φ = 255357952.

The previous prime is 542640271. The next prime is 542640299. The reversal of 542640272 is 272046245.

It can be written as a sum of positive squares in 3 ways, for example, as 183765136 + 358875136 = 13556^2 + 18944^2 .

It is not an unprimeable number, because it can be changed into a prime (542640271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54053 + ... + 63300.

Almost surely, 2^542640272 is an apocalyptic number.

It is an amenable number.

542640272 is an abundant number, since it is smaller than the sum of its proper divisors (574217746).

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

542640272 is a wasteful number, since it uses less digits than its factorization.

542640272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117395 (or 117372 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 542640272 is about 23294.6404136230. The cubic root of 542640272 is about 815.6503131303.

The spelling of 542640272 in words is "five hundred forty-two million, six hundred forty thousand, two hundred seventy-two".