3404340 has 36 divisors (see below), whose sum is σ = 10327044. Its totient is φ = 907776.

The previous prime is 3404329. The next prime is 3404341. The reversal of 3404340 is 434043.

It can be written as a sum of positive squares in 2 ways, for example, as 2471184 + 933156 = 1572^2 + 966^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3404341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9277 + ... + 9636.

Almost surely, 2^3404340 is an apocalyptic number.

3404340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3404340 is an abundant number, since it is smaller than the sum of its proper divisors (6922704).

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

3404340 is a wasteful number, since it uses less digits than its factorization.

3404340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18928 (or 18923 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 3404340 is about 1845.0853638789. The cubic root of 3404340 is about 150.4334131475.

Adding to 3404340 its reverse (434043), we get a palindrome (3838383).

The spelling of 3404340 in words is "three million, four hundred four thousand, three hundred forty".