3874409 has 16 divisors (see below), whose sum is σ = 4909056. Its totient is φ = 2970000.

The previous prime is 3874393. The next prime is 3874417. The reversal of 3874409 is 9044783.

It is not a de Polignac number, because 3874409 - 2⁴ = 3874393 is a prime.

It is a super-2 number, since 2×3874409² = 30022090198562, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3874439) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4784 + ... + 5534.

It is an arithmetic number, because the mean of its divisors is an integer number (306816).

Almost surely, 2^3874409 is an apocalyptic number.

It is an amenable number.

3874409 is a deficient number, since it is larger than the sum of its proper divisors (1034647).

3874409 is a wasteful number, since it uses less digits than its factorization.

3874409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 3874409 is about 1968.3518486287. The cubic root of 3874409 is about 157.0610470266.

It can be divided in two parts, 38 and 74409, that added together give a palindrome (74447).

The spelling of 3874409 in words is "three million, eight hundred seventy-four thousand, four hundred nine".