538272818 has 16 divisors (see below), whose sum is σ = 865287360. Its totient is φ = 250476336.

The previous prime is 538272769. The next prime is 538272827. The reversal of 538272818 is 818272835.

It is a super-2 number, since 2×538272818² = 579475253195322248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156428 + ... + 159831.

It is an arithmetic number, because the mean of its divisors is an integer number (54080460).

Almost surely, 2^538272818 is an apocalyptic number.

538272818 is a deficient number, since it is larger than the sum of its proper divisors (327014542).

538272818 is a wasteful number, since it uses less digits than its factorization.

538272818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316321.

The product of its digits is 215040, while the sum is 44.

The square root of 538272818 is about 23200.7072737018. The cubic root of 538272818 is about 813.4561552326.

The spelling of 538272818 in words is "five hundred thirty-eight million, two hundred seventy-two thousand, eight hundred eighteen".