3721446 has 48 divisors (see below), whose sum is σ = 8592480. Its totient is φ = 1161600.

The previous prime is 3721439. The next prime is 3721451. The reversal of 3721446 is 6441273.

3721446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36796 + ... + 36896.

It is an arithmetic number, because the mean of its divisors is an integer number (179010).

Almost surely, 2^3721446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3721446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4296240).

3721446 is an abundant number, since it is smaller than the sum of its proper divisors (4871034).

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

3721446 is a wasteful number, since it uses less digits than its factorization.

3721446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 218 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 3721446 is about 1929.1049738156. The cubic root of 3721446 is about 154.9662916640.

The spelling of 3721446 in words is "three million, seven hundred twenty-one thousand, four hundred forty-six".