542481682 has 4 divisors (see below), whose sum is σ = 813722526. Its totient is φ = 271240840.

The previous prime is 542481671. The next prime is 542481683. The reversal of 542481682 is 286184245.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 300710281 + 241771401 = 17341^2 + 15549^2 .

It is not an unprimeable number, because it can be changed into a prime (542481683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135620419 + ... + 135620422.

Almost surely, 2^542481682 is an apocalyptic number.

542481682 is a deficient number, since it is larger than the sum of its proper divisors (271240844).

542481682 is a wasteful number, since it uses less digits than its factorization.

542481682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271240843.

The product of its digits is 122880, while the sum is 40.

The square root of 542481682 is about 23291.2361629863. The cubic root of 542481682 is about 815.5708457598.

The spelling of 542481682 in words is "five hundred forty-two million, four hundred eighty-one thousand, six hundred eighty-two".