52398738 has 160 divisors (see below), whose sum is σ = 146361600. Its totient is φ = 13970880.

The previous prime is 52398727. The next prime is 52398739. The reversal of 52398738 is 83789325.

52398738 is a `hidden beast` number, since 523 + 98 + 7 + 38 = 666.

52398738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 52398693 and 52398702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52398739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1277998 + ... + 1278038.

It is an arithmetic number, because the mean of its divisors is an integer number (914760).

Almost surely, 2^52398738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52398738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73180800).

52398738 is an abundant number, since it is smaller than the sum of its proper divisors (93962862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52398738 is a wasteful number, since it uses less digits than its factorization.

52398738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 76 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 52398738 is about 7238.6972584851. The cubic root of 52398738 is about 374.2027221293.

The spelling of 52398738 in words is "fifty-two million, three hundred ninety-eight thousand, seven hundred thirty-eight".