3540186 has 60 divisors (see below), whose sum is σ = 8756286. Its totient is φ = 1062720.

The previous prime is 3540167. The next prime is 3540203. The reversal of 3540186 is 6810453.

It can be written as a sum of positive squares in 3 ways, for example, as 585225 + 2954961 = 765^2 + 1719^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 86326 + ... + 86366.

Almost surely, 2^3540186 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3540186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4378143).

3540186 is an abundant number, since it is smaller than the sum of its proper divisors (5216100).

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

3540186 is a wasteful number, since it uses less digits than its factorization.

3540186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 3540186 is about 1881.5382005157. The cubic root of 3540186 is about 152.4083261618.

The spelling of 3540186 in words is "three million, five hundred forty thousand, one hundred eighty-six".