538484378 has 4 divisors (see below), whose sum is σ = 807726570. Its totient is φ = 269242188.

The previous prime is 538484369. The next prime is 538484381. The reversal of 538484378 is 873484835.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 480617929 + 57866449 = 21923^2 + 7607^2 .

It is a super-3 number, since 3×538484378³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134621093 + ... + 134621096.

Almost surely, 2^538484378 is an apocalyptic number.

538484378 is a deficient number, since it is larger than the sum of its proper divisors (269242192).

538484378 is a wasteful number, since it uses less digits than its factorization.

538484378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269242191.

The product of its digits is 2580480, while the sum is 50.

The square root of 538484378 is about 23205.2661695573. The cubic root of 538484378 is about 813.5627134914.

The spelling of 538484378 in words is "five hundred thirty-eight million, four hundred eighty-four thousand, three hundred seventy-eight".