3721144 has 16 divisors (see below), whose sum is σ = 7974000. Its totient is φ = 1594752.

The previous prime is 3721141. The next prime is 3721153. The reversal of 3721144 is 4411273.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721141) 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, 33169 + ... + 33280.

It is an arithmetic number, because the mean of its divisors is an integer number (498375).

Almost surely, 2^3721144 is an apocalyptic number.

It is an amenable number.

3721144 is an abundant number, since it is smaller than the sum of its proper divisors (4252856).

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

3721144 is a wasteful number, since it uses less digits than its factorization.

3721144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66462 (or 66458 counting only the distinct ones).

The product of its digits is 672, while the sum is 22.

The square root of 3721144 is about 1929.0266975861. The cubic root of 3721144 is about 154.9620996477.

It can be divided in two parts, 3721 and 144, that multiplied together give a square (535824 = 732²).

The spelling of 3721144 in words is "three million, seven hundred twenty-one thousand, one hundred forty-four".