542240312 has 16 divisors (see below), whose sum is σ = 1016948400. Its totient is φ = 271054080.

The previous prime is 542240233. The next prime is 542240317. The reversal of 542240312 is 213042245.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542240317) 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 3 ways as a sum of consecutive naturals, for example, 56264 + ... + 65192.

It is an arithmetic number, because the mean of its divisors is an integer number (63559275).

Almost surely, 2^542240312 is an apocalyptic number.

It is an amenable number.

542240312 is a deficient number, since it is larger than the sum of its proper divisors (474708088).

542240312 is a wasteful number, since it uses less digits than its factorization.

542240312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16526 (or 16522 counting only the distinct ones).

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

The square root of 542240312 is about 23286.0540238143. The cubic root of 542240312 is about 815.4498686867.

Adding to 542240312 its reverse (213042245), we get a palindrome (755282557).

The spelling of 542240312 in words is "five hundred forty-two million, two hundred forty thousand, three hundred twelve".