3404388 has 48 divisors (see below), whose sum is σ = 8671040. Its totient is φ = 1033344.

The previous prime is 3404383. The next prime is 3404393. The reversal of 3404388 is 8834043.

It is an interprime number because it is at equal distance from previous prime (3404383) and next prime (3404393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3404381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21606 + ... + 21762.

Almost surely, 2^3404388 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 3404388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4335520).

3404388 is an abundant number, since it is smaller than the sum of its proper divisors (5266652).

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

3404388 is a wasteful number, since it uses less digits than its factorization.

3404388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 3404388 is about 1845.0983713613. The cubic root of 3404388 is about 150.4341201636.

The spelling of 3404388 in words is "three million, four hundred four thousand, three hundred eighty-eight".