542291242 has 8 divisors (see below), whose sum is σ = 841486500. Its totient is φ = 261795744.

The previous prime is 542291237. The next prime is 542291249. The reversal of 542291242 is 242192245.

It can be written as a sum of positive squares in 2 ways, for example, as 492884401 + 49406841 = 22201^2 + 7029^2 .

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

It is a super-2 number, since 2×542291242² = 588159582299805128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (542291249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4674867 + ... + 4674982.

Almost surely, 2^542291242 is an apocalyptic number.

542291242 is a deficient number, since it is larger than the sum of its proper divisors (299195258).

542291242 is a wasteful number, since it uses less digits than its factorization.

542291242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9349880.

The product of its digits is 11520, while the sum is 31.

The square root of 542291242 is about 23287.1475711389. The cubic root of 542291242 is about 815.4753983032.

The spelling of 542291242 in words is "five hundred forty-two million, two hundred ninety-one thousand, two hundred forty-two".