3145744 has 20 divisors (see below), whose sum is σ = 6965824. Its totient is φ = 1348128.

The previous prime is 3145741. The next prime is 3145771. The reversal of 3145744 is 4475413.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a d-powerful number, because it can be written as 3 + 1 + 4¹⁰ + 5 + 7 + 4¹⁰ + 4¹⁰ .

It is not an unprimeable number, because it can be changed into a prime (3145741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13932 + ... + 14155.

Almost surely, 2^3145744 is an apocalyptic number.

It is an amenable number.

3145744 is an abundant number, since it is smaller than the sum of its proper divisors (3820080).

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

3145744 is a wasteful number, since it uses less digits than its factorization.

3145744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28102 (or 28096 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 3145744 is about 1773.6245374938. The cubic root of 3145744 is about 146.5236714653.

The spelling of 3145744 in words is "three million, one hundred forty-five thousand, seven hundred forty-four".