538097478 has 8 divisors (see below), whose sum is σ = 1076194968. Its totient is φ = 179365824.

The previous prime is 538097477. The next prime is 538097479. The reversal of 538097478 is 874790835.

It is an interprime number because it is at equal distance from previous prime (538097477) and next prime (538097479).

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

538097478 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 538097478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538097477) 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, 44841451 + ... + 44841462.

It is an arithmetic number, because the mean of its divisors is an integer number (134524371).

Almost surely, 2^538097478 is an apocalyptic number.

538097478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

538097478 is a wasteful number, since it uses less digits than its factorization.

538097478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89682918.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The square root of 538097478 is about 23196.9282018115. The cubic root of 538097478 is about 813.3678190535.

The spelling of 538097478 in words is "five hundred thirty-eight million, ninety-seven thousand, four hundred seventy-eight".