3421072 has 40 divisors (see below), whose sum is σ = 7019640. Its totient is φ = 1612800.

The previous prime is 3421069. The next prime is 3421079. The reversal of 3421072 is 2701243.

It can be written as a sum of positive squares in 4 ways, for example, as 1527696 + 1893376 = 1236^2 + 1376^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421079) 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, 33822 + ... + 33922.

It is an arithmetic number, because the mean of its divisors is an integer number (175491).

Almost surely, 2^3421072 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 3421072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3509820).

3421072 is an abundant number, since it is smaller than the sum of its proper divisors (3598568).

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

3421072 is a wasteful number, since it uses less digits than its factorization.

3421072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 3421072 is about 1849.6140137877. The cubic root of 3421072 is about 150.6794656768.

The spelling of 3421072 in words is "three million, four hundred twenty-one thousand, seventy-two".