538121770 has 8 divisors (see below), whose sum is σ = 968619204. Its totient is φ = 215248704.

The previous prime is 538121741. The next prime is 538121797. The reversal of 538121770 is 77121835.

It can be written as a sum of positive squares in 2 ways, for example, as 510443649 + 27678121 = 22593^2 + 5261^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26906079 + ... + 26906098.

Almost surely, 2^538121770 is an apocalyptic number.

538121770 is a deficient number, since it is larger than the sum of its proper divisors (430497434).

538121770 is a wasteful number, since it uses less digits than its factorization.

538121770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53812184.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 538121770 is about 23197.4517997128. The cubic root of 538121770 is about 813.3800584924.

The spelling of 538121770 in words is "five hundred thirty-eight million, one hundred twenty-one thousand, seven hundred seventy".