538921542 has 8 divisors (see below), whose sum is σ = 1077843096. Its totient is φ = 179640512.

The previous prime is 538921541. The next prime is 538921583. The reversal of 538921542 is 245129835.

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

538921542 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 538921542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538921541) 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, 44910123 + ... + 44910134.

It is an arithmetic number, because the mean of its divisors is an integer number (134730387).

Almost surely, 2^538921542 is an apocalyptic number.

538921542 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.

538921542 is a wasteful number, since it uses less digits than its factorization.

538921542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89820262.

The product of its digits is 86400, while the sum is 39.

The square root of 538921542 is about 23214.6837583457. The cubic root of 538921542 is about 813.7828152816.

The spelling of 538921542 in words is "five hundred thirty-eight million, nine hundred twenty-one thousand, five hundred forty-two".