3817818252 has 48 divisors (see below), whose sum is σ = 9903667200. Its totient is φ = 1271883600.

The previous prime is 3817818241. The next prime is 3817818259. The reversal of 3817818252 is 2528187183.

3817818252 is a `hidden beast` number, since 381 + 7 + 8 + 18 + 252 = 666.

It is a super-3 number, since 3×3817818252³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3817818198 and 3817818207.

It is not an unprimeable number, because it can be changed into a prime (3817818259) 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, 201649 + ... + 219767.

It is an arithmetic number, because the mean of its divisors is an integer number (206326400).

Almost surely, 2^3817818252 is an apocalyptic number.

It is an amenable number.

3817818252 is an abundant number, since it is smaller than the sum of its proper divisors (6085848948).

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

3817818252 is a wasteful number, since it uses less digits than its factorization.

3817818252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20083 (or 20075 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 3817818252 is about 61788.4961137589. The cubic root of 3817818252 is about 1562.9260025165.

The spelling of 3817818252 in words is "three billion, eight hundred seventeen million, eight hundred eighteen thousand, two hundred fifty-two".