542042100 has 54 divisors (see below), whose sum is σ = 1699003670. Its totient is φ = 144544320.

The previous prime is 542042063. The next prime is 542042101. The reversal of 542042100 is 1240245.

It can be written as a sum of positive squares in 3 ways, for example, as 4822416 + 537219684 = 2196^2 + 23178^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542042101) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 300235 + ... + 302034.

Almost surely, 2^542042100 is an apocalyptic number.

542042100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

542042100 is an abundant number, since it is smaller than the sum of its proper divisors (1156961570).

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

542042100 is a wasteful number, since it uses less digits than its factorization.

542042100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602289 (or 602279 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 542042100 is about 23281.7976110093. The cubic root of 542042100 is about 815.3504959890.

Adding to 542042100 its reverse (1240245), we get a palindrome (543282345).

The spelling of 542042100 in words is "five hundred forty-two million, forty-two thousand, one hundred".