538394355 has 24 divisors (see below), whose sum is σ = 982335120. Its totient is φ = 272030400.

The previous prime is 538394323. The next prime is 538394359. The reversal of 538394355 is 553493835.

It is a happy number.

It is not a de Polignac number, because 538394355 - 2⁵ = 538394323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 538394355.

It is not an unprimeable number, because it can be changed into a prime (538394359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 313996 + ... + 315705.

It is an arithmetic number, because the mean of its divisors is an integer number (40930630).

Almost surely, 2^538394355 is an apocalyptic number.

538394355 is a deficient number, since it is larger than the sum of its proper divisors (443940765).

538394355 is a wasteful number, since it uses less digits than its factorization.

538394355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629731 (or 629728 counting only the distinct ones).

The product of its digits is 972000, while the sum is 45.

The square root of 538394355 is about 23203.3263779140. The cubic root of 538394355 is about 813.5173742387.

The spelling of 538394355 in words is "five hundred thirty-eight million, three hundred ninety-four thousand, three hundred fifty-five".