3958236 has 36 divisors (see below), whose sum is σ = 10242232. Its totient is φ = 1288224.

The previous prime is 3958219. The next prime is 3958243. The reversal of 3958236 is 6328593.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 3⁷ + 9² + 5 + 8⁷ + 2¹¹ + 3¹¹ + 6⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 3958236.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 270 + ... + 2826.

Almost surely, 2^3958236 is an apocalyptic number.

3958236 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3958236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5121116).

3958236 is an abundant number, since it is smaller than the sum of its proper divisors (6283996).

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

3958236 is a wasteful number, since it uses less digits than its factorization.

3958236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610 (or 2605 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 3958236 is about 1989.5316031669. The cubic root of 3958236 is about 158.1857027115.

The spelling of 3958236 in words is "three million, nine hundred fifty-eight thousand, two hundred thirty-six".