538460478 has 12 divisors (see below), whose sum is σ = 1166664408. Its totient is φ = 179486820.

The previous prime is 538460471. The next prime is 538460479. The reversal of 538460478 is 874064835.

538460478 is a `hidden beast` number, since 5 + 38 + 4 + 604 + 7 + 8 = 666.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (538460471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14957218 + ... + 14957253.

It is an arithmetic number, because the mean of its divisors is an integer number (97222034).

Almost surely, 2^538460478 is an apocalyptic number.

538460478 is an abundant number, since it is smaller than the sum of its proper divisors (628203930).

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

538460478 is a wasteful number, since it uses less digits than its factorization.

538460478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29914479 (or 29914476 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 538460478 is about 23204.7511945291. The cubic root of 538460478 is about 813.5506769698.

The spelling of 538460478 in words is "five hundred thirty-eight million, four hundred sixty thousand, four hundred seventy-eight".