542394423 has 12 divisors (see below), whose sum is σ = 785787808. Its totient is φ = 360521280.

The previous prime is 542394407. The next prime is 542394427. The reversal of 542394423 is 324493245.

542394423 is a `hidden beast` number, since 542 + 3 + 94 + 4 + 23 = 666.

It is not a de Polignac number, because 542394423 - 2⁴ = 542394407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542394427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86383 + ... + 92448.

Almost surely, 2^542394423 is an apocalyptic number.

542394423 is a deficient number, since it is larger than the sum of its proper divisors (243393385).

542394423 is a wasteful number, since it uses less digits than its factorization.

542394423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179174 (or 179171 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 542394423 is about 23289.3628723501. The cubic root of 542394423 is about 815.5271148131.

The spelling of 542394423 in words is "five hundred forty-two million, three hundred ninety-four thousand, four hundred twenty-three".