538127540 has 24 divisors (see below), whose sum is σ = 1130879232. Its totient is φ = 215096480.

The previous prime is 538127507. The next prime is 538127561. The reversal of 538127540 is 45721835.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 538127540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21317 + ... + 39123.

It is an arithmetic number, because the mean of its divisors is an integer number (47119968).

Almost surely, 2^538127540 is an apocalyptic number.

It is an amenable number.

538127540 is an abundant number, since it is smaller than the sum of its proper divisors (592751692).

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

538127540 is a wasteful number, since it uses less digits than its factorization.

538127540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19327 (or 19325 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 538127540 is about 23197.5761664877. The cubic root of 538127540 is about 813.3829656326.

The spelling of 538127540 in words is "five hundred thirty-eight million, one hundred twenty-seven thousand, five hundred forty".