542143540 has 24 divisors (see below), whose sum is σ = 1140804000. Its totient is φ = 216418848.

The previous prime is 542143523. The next prime is 542143541. The reversal of 542143540 is 45341245.

It is a junction number, because it is equal to n+sod(n) for n = 542143499 and 542143508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542143541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17182 + ... + 37141.

It is an arithmetic number, because the mean of its divisors is an integer number (47533500).

Almost surely, 2^542143540 is an apocalyptic number.

It is an amenable number.

542143540 is an abundant number, since it is smaller than the sum of its proper divisors (598660460).

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

542143540 is a wasteful number, since it uses less digits than its factorization.

542143540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54831 (or 54829 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 542143540 is about 23283.9760350332. The cubic root of 542143540 is about 815.4013555043.

Adding to 542143540 its reverse (45341245), we get a palindrome (587484785).

The spelling of 542143540 in words is "five hundred forty-two million, one hundred forty-three thousand, five hundred forty".