818252838 has 24 divisors (see below), whose sum is σ = 1909257168. Its totient is φ = 251770032.

The previous prime is 818252833. The next prime is 818252873. The reversal of 818252838 is 838252818.

It is a junction number, because it is equal to n+sod(n) for n = 818252793 and 818252802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818252833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1748170 + ... + 1748637.

It is an arithmetic number, because the mean of its divisors is an integer number (79552382).

Almost surely, 2^818252838 is an apocalyptic number.

818252838 is an abundant number, since it is smaller than the sum of its proper divisors (1091004330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

818252838 is a wasteful number, since it uses less digits than its factorization.

818252838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3496828 (or 3496825 counting only the distinct ones).

The product of its digits is 245760, while the sum is 45.

The square root of 818252838 is about 28605.1190873242. The cubic root of 818252838 is about 935.3249227710.

The spelling of 818252838 in words is "eight hundred eighteen million, two hundred fifty-two thousand, eight hundred thirty-eight".