538078140 has 60 divisors (see below), whose sum is σ = 1687976136. Its totient is φ = 143487072.

The previous prime is 538078111. The next prime is 538078141. The reversal of 538078140 is 41870835.

538078140 is a `hidden beast` number, since 538 + 0 + 7 + 81 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 538078095 and 538078104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538078141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 164454 + ... + 167693.

Almost surely, 2^538078140 is an apocalyptic number.

It is an amenable number.

538078140 is an abundant number, since it is smaller than the sum of its proper divisors (1149897996).

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

538078140 is a wasteful number, since it uses less digits than its factorization.

538078140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332168 (or 332157 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 538078140 is about 23196.5113756358. The cubic root of 538078140 is about 813.3580754067.

The spelling of 538078140 in words is "five hundred thirty-eight million, seventy-eight thousand, one hundred forty".