542244240 has 160 divisors (see below), whose sum is σ = 1977730560. Its totient is φ = 136083456.

The previous prime is 542244203. The next prime is 542244247. The reversal of 542244240 is 42442245.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542244247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29337 + ... + 44103.

It is an arithmetic number, because the mean of its divisors is an integer number (12360816).

Almost surely, 2^542244240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542244240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (988865280).

542244240 is an abundant number, since it is smaller than the sum of its proper divisors (1435486320).

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

542244240 is a wasteful number, since it uses less digits than its factorization.

542244240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14806 (or 14794 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 542244240 is about 23286.1383659893. The cubic root of 542244240 is about 815.4518377272.

Adding to 542244240 its reverse (42442245), we get a palindrome (584686485).

The spelling of 542244240 in words is "five hundred forty-two million, two hundred forty-four thousand, two hundred forty".