818864241 has 16 divisors (see below), whose sum is σ = 1183027776. Its totient is φ = 500821056.

The previous prime is 818864231. The next prime is 818864243. The reversal of 818864241 is 142468818.

It is not a de Polignac number, because 818864241 - 2⁵ = 818864209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 818864193 and 818864202.

It is not an unprimeable number, because it can be changed into a prime (818864243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58050 + ... + 70763.

It is an arithmetic number, because the mean of its divisors is an integer number (73939236).

Almost surely, 2^818864241 is an apocalyptic number.

It is an amenable number.

818864241 is a deficient number, since it is larger than the sum of its proper divisors (364163535).

818864241 is a wasteful number, since it uses less digits than its factorization.

818864241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128992.

The product of its digits is 98304, while the sum is 42.

The square root of 818864241 is about 28615.8040425217. The cubic root of 818864241 is about 935.5578247396.

The spelling of 818864241 in words is "eight hundred eighteen million, eight hundred sixty-four thousand, two hundred forty-one".