42540326 has 4 divisors (see below), whose sum is σ = 63810492. Its totient is φ = 21270162.

The previous prime is 42540293. The next prime is 42540331. The reversal of 42540326 is 62304524.

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

It is a super-3 number, since 3×42540326³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42540295 and 42540304.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10635080 + ... + 10635083.

It is an arithmetic number, because the mean of its divisors is an integer number (15952623).

Almost surely, 2^42540326 is an apocalyptic number.

42540326 is a deficient number, since it is larger than the sum of its proper divisors (21270166).

42540326 is a wasteful number, since it uses less digits than its factorization.

42540326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21270165.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 42540326 is about 6522.2945349010. The cubic root of 42540326 is about 349.0869425950.

The spelling of 42540326 in words is "forty-two million, five hundred forty thousand, three hundred twenty-six".