52742438 has 16 divisors (see below), whose sum is σ = 91069440. Its totient is φ = 22440456.

The previous prime is 52742419. The next prime is 52742471. The reversal of 52742438 is 83424725.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 52742398 and 52742407.

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 in 7 ways as a sum of consecutive naturals, for example, 11606 + ... + 15497.

It is an arithmetic number, because the mean of its divisors is an integer number (5691840).

Almost surely, 2^52742438 is an apocalyptic number.

52742438 is a deficient number, since it is larger than the sum of its proper divisors (38327002).

52742438 is a wasteful number, since it uses less digits than its factorization.

52742438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27251.

The product of its digits is 53760, while the sum is 35.

The square root of 52742438 is about 7262.3989149592. The cubic root of 52742438 is about 375.0191113223.

The spelling of 52742438 in words is "fifty-two million, seven hundred forty-two thousand, four hundred thirty-eight".