542393279 has 8 divisors (see below), whose sum is σ = 574918560. Its totient is φ = 509936896.

The previous prime is 542393261. The next prime is 542393287. The reversal of 542393279 is 972393245.

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

It is a de Polignac number, because none of the positive numbers 2^k-542393279 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 (542393219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539 + ... + 32940.

It is an arithmetic number, because the mean of its divisors is an integer number (71864820).

Almost surely, 2^542393279 is an apocalyptic number.

542393279 is a deficient number, since it is larger than the sum of its proper divisors (32525281).

542393279 is a wasteful number, since it uses less digits than its factorization.

542393279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34449.

The product of its digits is 408240, while the sum is 44.

The square root of 542393279 is about 23289.3383117683. The cubic root of 542393279 is about 815.5265414520.

The spelling of 542393279 in words is "five hundred forty-two million, three hundred ninety-three thousand, two hundred seventy-nine".