542536426 has 4 divisors (see below), whose sum is σ = 813804642. Its totient is φ = 271268212.

The previous prime is 542536417. The next prime is 542536429. The reversal of 542536426 is 624635245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 394062201 + 148474225 = 19851^2 + 12185^2 .

It is not an unprimeable number, because it can be changed into a prime (542536429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135634105 + ... + 135634108.

Almost surely, 2^542536426 is an apocalyptic number.

542536426 is a deficient number, since it is larger than the sum of its proper divisors (271268216).

542536426 is a wasteful number, since it uses less digits than its factorization.

542536426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271268215.

The product of its digits is 172800, while the sum is 37.

The square root of 542536426 is about 23292.4113393182. The cubic root of 542536426 is about 815.5982790109.

The spelling of 542536426 in words is "five hundred forty-two million, five hundred thirty-six thousand, four hundred twenty-six".