542201242 has 24 divisors (see below), whose sum is σ = 897390900. Its totient is φ = 245509440.

The previous prime is 542201237. The next prime is 542201249. The reversal of 542201242 is 242102245.

It can be written as a sum of positive squares in 2 ways, for example, as 428117481 + 114083761 = 20691^2 + 10681^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (542201249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60934 + ... + 69262.

Almost surely, 2^542201242 is an apocalyptic number.

542201242 is a deficient number, since it is larger than the sum of its proper divisors (355189658).

542201242 is a wasteful number, since it uses less digits than its factorization.

542201242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8622 (or 8611 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 542201242 is about 23285.2150945616. The cubic root of 542201242 is about 815.4302830339.

Adding to 542201242 its reverse (242102245), we get a palindrome (784303487).

The spelling of 542201242 in words is "five hundred forty-two million, two hundred one thousand, two hundred forty-two".