538782219 has 8 divisors (see below), whose sum is σ = 798195920. Its totient is φ = 359188128.

The previous prime is 538782203. The next prime is 538782239. The reversal of 538782219 is 912287835.

It is a happy number.

It is not a de Polignac number, because 538782219 - 2⁴ = 538782203 is a prime.

It is a super-2 number, since 2×538782219² = 580572559021127922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538782239) 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 7 ways as a sum of consecutive naturals, for example, 9977422 + ... + 9977475.

It is an arithmetic number, because the mean of its divisors is an integer number (99774490).

Almost surely, 2^538782219 is an apocalyptic number.

538782219 is a deficient number, since it is larger than the sum of its proper divisors (259413701).

538782219 is a wasteful number, since it uses less digits than its factorization.

538782219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19954906 (or 19954900 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 538782219 is about 23211.6828127562. The cubic root of 538782219 is about 813.7126823550.

The spelling of 538782219 in words is "five hundred thirty-eight million, seven hundred eighty-two thousand, two hundred nineteen".