542781862 has 32 divisors (see below), whose sum is σ = 975389184. Its totient is φ = 221659200.

The previous prime is 542781859. The next prime is 542781907. The reversal of 542781862 is 268187245.

It is a happy number.

It is a super-2 number, since 2×542781862² = 589224299432374088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13687 + ... + 35677.

It is an arithmetic number, because the mean of its divisors is an integer number (30480912).

Almost surely, 2^542781862 is an apocalyptic number.

542781862 is a deficient number, since it is larger than the sum of its proper divisors (432607322).

542781862 is a wasteful number, since it uses less digits than its factorization.

542781862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22084.

The product of its digits is 215040, while the sum is 43.

The square root of 542781862 is about 23297.6793264909. The cubic root of 542781862 is about 815.7212489421.

The spelling of 542781862 in words is "five hundred forty-two million, seven hundred eighty-one thousand, eight hundred sixty-two".