542040330 has 128 divisors (see below), whose sum is σ = 1444101120. Its totient is φ = 129392640.

The previous prime is 542040319. The next prime is 542040337. The reversal of 542040330 is 33040245.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 542040297 and 542040306.

It is not an unprimeable number, because it can be changed into a prime (542040337) 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 in 63 ways as a sum of consecutive naturals, for example, 2249010 + ... + 2249250.

It is an arithmetic number, because the mean of its divisors is an integer number (11282040).

Almost surely, 2^542040330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542040330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (722050560).

542040330 is an abundant number, since it is smaller than the sum of its proper divisors (902060790).

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

542040330 is a wasteful number, since it uses less digits than its factorization.

542040330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 542040330 is about 23281.7595984496. The cubic root of 542040330 is about 815.3496084983.

Adding to 542040330 its reverse (33040245), we get a palindrome (575080575).

The spelling of 542040330 in words is "five hundred forty-two million, forty thousand, three hundred thirty".