542251442 has 8 divisors (see below), whose sum is σ = 839615232. Its totient is φ = 262379700.

The previous prime is 542251433. The next prime is 542251447. The reversal of 542251442 is 244152245.

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

It is not an unprimeable number, because it can be changed into a prime (542251447) 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 3 ways as a sum of consecutive naturals, for example, 4372934 + ... + 4373057.

It is an arithmetic number, because the mean of its divisors is an integer number (104951904).

Almost surely, 2^542251442 is an apocalyptic number.

542251442 is a deficient number, since it is larger than the sum of its proper divisors (297363790).

542251442 is a wasteful number, since it uses less digits than its factorization.

542251442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8746024.

The product of its digits is 12800, while the sum is 29.

The square root of 542251442 is about 23286.2930068313. The cubic root of 542251442 is about 815.4554479442.

The spelling of 542251442 in words is "five hundred forty-two million, two hundred fifty-one thousand, four hundred forty-two".