3420186 has 48 divisors (see below), whose sum is σ = 8605632. Its totient is φ = 887040.

The previous prime is 3420161. The next prime is 3420187. The reversal of 3420186 is 6810243.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3420187) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4746 + ... + 5418.

It is an arithmetic number, because the mean of its divisors is an integer number (179284).

Almost surely, 2^3420186 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3420186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4302816).

3420186 is an abundant number, since it is smaller than the sum of its proper divisors (5185446).

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

3420186 is a wasteful number, since it uses less digits than its factorization.

3420186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 3420186 is about 1849.3744888475. The cubic root of 3420186 is about 150.6664567396. Note that the first 3 decimals are identical.

The spelling of 3420186 in words is "three million, four hundred twenty thousand, one hundred eighty-six".