538690542 has 24 divisors (see below), whose sum is σ = 1166633784. Its totient is φ = 165750624.

The previous prime is 538690517. The next prime is 538690553. The reversal of 538690542 is 245096835.

538690542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 538690494 and 538690503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 264613 + ... + 266640.

It is an arithmetic number, because the mean of its divisors is an integer number (48609741).

Almost surely, 2^538690542 is an apocalyptic number.

538690542 is an abundant number, since it is smaller than the sum of its proper divisors (627943242).

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

538690542 is a wasteful number, since it uses less digits than its factorization.

538690542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531284 (or 531271 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 538690542 is about 23209.7079257797. The cubic root of 538690542 is about 813.6665270524. Note that the first 3 decimals are identical.

The spelling of 538690542 in words is "five hundred thirty-eight million, six hundred ninety thousand, five hundred forty-two".