542840326 has 12 divisors (see below), whose sum is σ = 947201148. Its totient is φ = 232645812.

The previous prime is 542840261. The next prime is 542840327. The reversal of 542840326 is 623048245.

It is a junction number, because it is equal to n+sod(n) for n = 542840291 and 542840300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542840327) 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 5 ways as a sum of consecutive naturals, for example, 2769496 + ... + 2769691.

It is an arithmetic number, because the mean of its divisors is an integer number (78933429).

Almost surely, 2^542840326 is an apocalyptic number.

542840326 is a deficient number, since it is larger than the sum of its proper divisors (404360822).

542840326 is a wasteful number, since it uses less digits than its factorization.

542840326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5539203 (or 5539196 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 542840326 is about 23298.9340099499. The cubic root of 542840326 is about 815.7505354863.

It can be divided in two parts, 5428 and 40326, that added together give a palindrome (45754).

The spelling of 542840326 in words is "five hundred forty-two million, eight hundred forty thousand, three hundred twenty-six".