538467481 has 4 divisors (see below), whose sum is σ = 539338000. Its totient is φ = 537596964.

The previous prime is 538467463. The next prime is 538467493. The reversal of 538467481 is 184764835.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538467481 is a prime.

It is a super-2 number, since 2×538467481² = 579894456188970722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538467431) 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 3 ways as a sum of consecutive naturals, for example, 434331 + ... + 435568.

It is an arithmetic number, because the mean of its divisors is an integer number (134834500).

Almost surely, 2^538467481 is an apocalyptic number.

It is an amenable number.

538467481 is a deficient number, since it is larger than the sum of its proper divisors (870519).

538467481 is an equidigital number, since it uses as much as digits as its factorization.

538467481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870518.

The product of its digits is 645120, while the sum is 46.

The square root of 538467481 is about 23204.9020898602. The cubic root of 538467481 is about 813.5542038586.

The spelling of 538467481 in words is "five hundred thirty-eight million, four hundred sixty-seven thousand, four hundred eighty-one".