52738438 has 4 divisors (see below), whose sum is σ = 79107660. Its totient is φ = 26369218.

The previous prime is 52738429. The next prime is 52738459. The reversal of 52738438 is 83483725.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 52738438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13184608 + ... + 13184611.

It is an arithmetic number, because the mean of its divisors is an integer number (19776915).

Almost surely, 2^52738438 is an apocalyptic number.

52738438 is a deficient number, since it is larger than the sum of its proper divisors (26369222).

52738438 is a wasteful number, since it uses less digits than its factorization.

52738438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26369221.

The product of its digits is 161280, while the sum is 40.

The square root of 52738438 is about 7262.1235186411. The cubic root of 52738438 is about 375.0096305675.

The spelling of 52738438 in words is "fifty-two million, seven hundred thirty-eight thousand, four hundred thirty-eight".