3538818 has 36 divisors (see below), whose sum is σ = 7922070. Its totient is φ = 1141536.

The previous prime is 3538813. The next prime is 3538831. The reversal of 3538818 is 8188353.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3359889 + 178929 = 1833^2 + 423^2 .

It is not an unprimeable number, because it can be changed into a prime (3538813) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 39718 + ... + 39806.

Almost surely, 2^3538818 is an apocalyptic number.

3538818 is an abundant number, since it is smaller than the sum of its proper divisors (4383252).

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

3538818 is a wasteful number, since it uses less digits than its factorization.

3538818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 141 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 3538818 is about 1881.1746330418. The cubic root of 3538818 is about 152.3886924051.

It can be divided in two parts, 3538 and 818, that added together give a square (4356 = 66²).

The spelling of 3538818 in words is "three million, five hundred thirty-eight thousand, eight hundred eighteen".