542281536 has 42 divisors (see below), whose sum is σ = 1554353762. Its totient is φ = 180760320.

The previous prime is 542281529. The next prime is 542281561. The reversal of 542281536 is 635182245.

542281536 is a `hidden beast` number, since 5 + 42 + 2 + 81 + 536 = 666.

It can be written as a sum of positive squares in only one way, i.e., 540841536 + 1440000 = 23256^2 + 1200^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 542281536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 470155 + ... + 471306.

Almost surely, 2^542281536 is an apocalyptic number.

It is an amenable number.

542281536 is an abundant number, since it is smaller than the sum of its proper divisors (1012072226).

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

542281536 is a wasteful number, since it uses less digits than its factorization.

542281536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941479 (or 941466 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 542281536 is about 23286.9391719908. The cubic root of 542281536 is about 815.4705331122.

The spelling of 542281536 in words is "five hundred forty-two million, two hundred eighty-one thousand, five hundred thirty-six".