3728144 has 20 divisors (see below), whose sum is σ = 8255424. Its totient is φ = 1597728.

The previous prime is 3728141. The next prime is 3728149. The reversal of 3728144 is 4418273.

It is not an unprimeable number, because it can be changed into a prime (3728141) 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, 16532 + ... + 16755.

Almost surely, 2^3728144 is an apocalyptic number.

It is an amenable number.

3728144 is an abundant number, since it is smaller than the sum of its proper divisors (4527280).

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

3728144 is a wasteful number, since it uses less digits than its factorization.

3728144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33302 (or 33296 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 3728144 is about 1930.8402316090. The cubic root of 3728144 is about 155.0592073497.

The spelling of 3728144 in words is "three million, seven hundred twenty-eight thousand, one hundred forty-four".