538128346 has 8 divisors (see below), whose sum is σ = 922505760. Its totient is φ = 230626428.

The previous prime is 538128323. The next prime is 538128347. The reversal of 538128346 is 643821835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 538128299 and 538128308.

It is not an unprimeable number, because it can be changed into a prime (538128347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19218856 + ... + 19218883.

It is an arithmetic number, because the mean of its divisors is an integer number (115313220).

Almost surely, 2^538128346 is an apocalyptic number.

538128346 is a deficient number, since it is larger than the sum of its proper divisors (384377414).

538128346 is a wasteful number, since it uses less digits than its factorization.

538128346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38437748.

The product of its digits is 138240, while the sum is 40.

The square root of 538128346 is about 23197.5935389859. The cubic root of 538128346 is about 813.3833717236.

The spelling of 538128346 in words is "five hundred thirty-eight million, one hundred twenty-eight thousand, three hundred forty-six".