542402132 has 6 divisors (see below), whose sum is σ = 949203738. Its totient is φ = 271201064.

The previous prime is 542402131. The next prime is 542402143. The reversal of 542402132 is 231204245.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 386751556 + 155650576 = 19666^2 + 12476^2 .

It is a junction number, because it is equal to n+sod(n) for n = 542402098 and 542402107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542402131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67800263 + ... + 67800270.

It is an arithmetic number, because the mean of its divisors is an integer number (158200623).

Almost surely, 2^542402132 is an apocalyptic number.

It is an amenable number.

542402132 is a deficient number, since it is larger than the sum of its proper divisors (406801606).

542402132 is a wasteful number, since it uses less digits than its factorization.

542402132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135600537 (or 135600535 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 542402132 is about 23289.5283765043. The cubic root of 542402132 is about 815.5309784644.

Adding to 542402132 its reverse (231204245), we get a palindrome (773606377).

The spelling of 542402132 in words is "five hundred forty-two million, four hundred two thousand, one hundred thirty-two".