542456979 has 8 divisors (see below), whose sum is σ = 724151760. Its totient is φ = 361200096.

The previous prime is 542456951. The next prime is 542456987. The reversal of 542456979 is 979654245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 542456979 - 2⁷ = 542456851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542656979) 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 7 ways as a sum of consecutive naturals, for example, 106572 + ... + 111545.

It is an arithmetic number, because the mean of its divisors is an integer number (90518970).

Almost surely, 2^542456979 is an apocalyptic number.

542456979 is a deficient number, since it is larger than the sum of its proper divisors (181694781).

542456979 is a wasteful number, since it uses less digits than its factorization.

542456979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218949.

The product of its digits is 2721600, while the sum is 51.

The square root of 542456979 is about 23290.7058501884. The cubic root of 542456979 is about 815.5584660161.

The spelling of 542456979 in words is "five hundred forty-two million, four hundred fifty-six thousand, nine hundred seventy-nine".