3609408 has 56 divisors (see below), whose sum is σ = 10424160. Its totient is φ = 1093120.

The previous prime is 3609407. The next prime is 3609409. The reversal of 3609408 is 8049063.

It is an interprime number because it is at equal distance from previous prime (3609407) and next prime (3609409).

It is a super-2 number, since 2×3609408² = 26055652220928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3609407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1258 + ... + 2966.

Almost surely, 2^3609408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3609408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5212080).

3609408 is an abundant number, since it is smaller than the sum of its proper divisors (6814752).

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

3609408 is a wasteful number, since it uses less digits than its factorization.

3609408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735 (or 1725 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 3609408 is about 1899.8442041389. The cubic root of 3609408 is about 153.3952784791.

The spelling of 3609408 in words is "three million, six hundred nine thousand, four hundred eight".