538452389 has 4 divisors (see below), whose sum is σ = 538546080. Its totient is φ = 538358700.

The previous prime is 538452371. The next prime is 538452391. The reversal of 538452389 is 983254835.

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-538452389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538452319) 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, 37619 + ... + 49920.

It is an arithmetic number, because the mean of its divisors is an integer number (134636520).

Almost surely, 2^538452389 is an apocalyptic number.

It is an amenable number.

538452389 is a deficient number, since it is larger than the sum of its proper divisors (93691).

538452389 is an equidigital number, since it uses as much as digits as its factorization.

538452389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93690.

The product of its digits is 1036800, while the sum is 47.

The square root of 538452389 is about 23204.5768976726. The cubic root of 538452389 is about 813.5466031057.

The spelling of 538452389 in words is "five hundred thirty-eight million, four hundred fifty-two thousand, three hundred eighty-nine".