542430923 has 4 divisors (see below), whose sum is σ = 542491728. Its totient is φ = 542370120.

The previous prime is 542430913. The next prime is 542430937. The reversal of 542430923 is 329034245.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 542430923 - 2⁸ = 542430667 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 542430923.

It is not an unprimeable number, because it can be changed into a prime (542430913) 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, 14111 + ... + 35832.

It is an arithmetic number, because the mean of its divisors is an integer number (135622932).

Almost surely, 2^542430923 is an apocalyptic number.

542430923 is a deficient number, since it is larger than the sum of its proper divisors (60805).

542430923 is a wasteful number, since it uses less digits than its factorization.

542430923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60804.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 542430923 is about 23290.1464787150. The cubic root of 542430923 is about 815.5454078183.

The spelling of 542430923 in words is "five hundred forty-two million, four hundred thirty thousand, nine hundred twenty-three".