542543736 has 64 divisors (see below), whose sum is σ = 1563897600. Its totient is φ = 153635328.

The previous prime is 542543723. The next prime is 542543759. The reversal of 542543736 is 637345245.

It is a junction number, because it is equal to n+sod(n) for n = 542543694 and 542543703.

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, 4695 + ... + 33273.

It is an arithmetic number, because the mean of its divisors is an integer number (24435900).

Almost surely, 2^542543736 is an apocalyptic number.

542543736 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542543736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (781948800).

542543736 is an abundant number, since it is smaller than the sum of its proper divisors (1021353864).

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

542543736 is a wasteful number, since it uses less digits than its factorization.

542543736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28708 (or 28704 counting only the distinct ones).

The product of its digits is 302400, while the sum is 39.

The square root of 542543736 is about 23292.5682568497. The cubic root of 542543736 is about 815.6019420501.

The spelling of 542543736 in words is "five hundred forty-two million, five hundred forty-three thousand, seven hundred thirty-six".