542781238 has 8 divisors (see below), whose sum is σ = 827971560. Its totient is φ = 266790720.

The previous prime is 542781199. The next prime is 542781257. The reversal of 542781238 is 832187245.

It is a happy number.

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

It is a super-2 number, since 2×542781238² = 589222944649625288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 542781238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2299803 + ... + 2300038.

It is an arithmetic number, because the mean of its divisors is an integer number (103496445).

Almost surely, 2^542781238 is an apocalyptic number.

542781238 is a deficient number, since it is larger than the sum of its proper divisors (285190322).

542781238 is a wasteful number, since it uses less digits than its factorization.

542781238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4599902.

The product of its digits is 107520, while the sum is 40.

The square root of 542781238 is about 23297.6659345953. The cubic root of 542781238 is about 815.7209363486.

The spelling of 542781238 in words is "five hundred forty-two million, seven hundred eighty-one thousand, two hundred thirty-eight".