542542120 has 32 divisors (see below), whose sum is σ = 1222227720. Its totient is φ = 216748800.

The previous prime is 542542073. The next prime is 542542123. The reversal of 542542120 is 21245245.

It can be written as a sum of positive squares in 4 ways, for example, as 467164996 + 75377124 = 21614^2 + 8682^2 .

It is not an unprimeable number, because it can be changed into a prime (542542123) 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, 26170 + ... + 42070.

Almost surely, 2^542542120 is an apocalyptic number.

It is an amenable number.

542542120 is an abundant number, since it is smaller than the sum of its proper divisors (679685600).

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

542542120 is a wasteful number, since it uses less digits than its factorization.

542542120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16765 (or 16761 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 542542120 is about 23292.5335676478. The cubic root of 542542120 is about 815.6011322757.

Adding to 542542120 its reverse (21245245), we get a palindrome (563787365).

The spelling of 542542120 in words is "five hundred forty-two million, five hundred forty-two thousand, one hundred twenty".