3420404 has 12 divisors (see below), whose sum is σ = 6446244. Its totient is φ = 1578624.

The previous prime is 3420401. The next prime is 3420409. The reversal of 3420404 is 4040243.

It can be written as a sum of positive squares in 2 ways, for example, as 1317904 + 2102500 = 1148^2 + 1450^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32837 + ... + 32940.

It is an arithmetic number, because the mean of its divisors is an integer number (537187).

Almost surely, 2^3420404 is an apocalyptic number.

It is an amenable number.

3420404 is a deficient number, since it is larger than the sum of its proper divisors (3025840).

3420404 is a wasteful number, since it uses less digits than its factorization.

3420404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65794 (or 65792 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 3420404 is about 1849.4334267553. The cubic root of 3420404 is about 150.6696577925.

Adding to 3420404 its reverse (4040243), we get a palindrome (7460647).

The spelling of 3420404 in words is "three million, four hundred twenty thousand, four hundred four".