542873812 has 24 divisors (see below), whose sum is σ = 1027598600. Its totient is φ = 249457536.

The previous prime is 542873803. The next prime is 542873857. The reversal of 542873812 is 218378245.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 50211396 + 492662416 = 7086^2 + 22196^2 .

It is a super-2 number, since 2×542873812² = 589423951510822688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10887 + ... + 34702.

Almost surely, 2^542873812 is an apocalyptic number.

542873812 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

542873812 is a deficient number, since it is larger than the sum of its proper divisors (484724788).

542873812 is a wasteful number, since it uses less digits than its factorization.

542873812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45835 (or 45833 counting only the distinct ones).

The product of its digits is 107520, while the sum is 40.

The square root of 542873812 is about 23299.6526154361. The cubic root of 542873812 is about 815.7673087800.

The spelling of 542873812 in words is "five hundred forty-two million, eight hundred seventy-three thousand, eight hundred twelve".