542440011 has 4 divisors (see below), whose sum is σ = 723253352. Its totient is φ = 361626672.

The previous prime is 542440009. The next prime is 542440033. The reversal of 542440011 is 110044245.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 542440011 - 2¹ = 542440009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 542440011.

It is not an unprimeable number, because it can be changed into a prime (542440061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90406666 + ... + 90406671.

It is an arithmetic number, because the mean of its divisors is an integer number (180813338).

Almost surely, 2^542440011 is an apocalyptic number.

542440011 is a deficient number, since it is larger than the sum of its proper divisors (180813341).

542440011 is a wasteful number, since it uses less digits than its factorization.

542440011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180813340.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 542440011 is about 23290.3415818661. The cubic root of 542440011 is about 815.5499623984.

Adding to 542440011 its reverse (110044245), we get a palindrome (652484256).

The spelling of 542440011 in words is "five hundred forty-two million, four hundred forty thousand, eleven".