538506433 has 16 divisors (see below), whose sum is σ = 577039680. Its totient is φ = 500774400.

The previous prime is 538506431. The next prime is 538506457. The reversal of 538506433 is 334605835.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 538506433 - 2¹ = 538506431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 538506392 and 538506401.

It is not an unprimeable number, because it can be changed into a prime (538506431) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 663598 + ... + 664408.

It is an arithmetic number, because the mean of its divisors is an integer number (36064980).

Almost surely, 2^538506433 is an apocalyptic number.

It is an amenable number.

538506433 is a deficient number, since it is larger than the sum of its proper divisors (38533247).

538506433 is a wasteful number, since it uses less digits than its factorization.

538506433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 538506433 is about 23205.7413800982. The cubic root of 538506433 is about 813.5738205178.

The spelling of 538506433 in words is "five hundred thirty-eight million, five hundred six thousand, four hundred thirty-three".