4155744 has 48 divisors (see below), whose sum is σ = 11076912. Its totient is φ = 1363968.

The previous prime is 4155743. The next prime is 4155751. The reversal of 4155744 is 4475514.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4155743) 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, 6712 + ... + 7304.

It is an arithmetic number, because the mean of its divisors is an integer number (230769).

Almost surely, 2^4155744 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 4155744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5538456).

4155744 is an abundant number, since it is smaller than the sum of its proper divisors (6921168).

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

4155744 is a wasteful number, since it uses less digits than its factorization.

4155744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 671 counting only the distinct ones).

The product of its digits is 11200, while the sum is 30.

The square root of 4155744 is about 2038.5642006079. The cubic root of 4155744 is about 160.7741648056.

The spelling of 4155744 in words is "four million, one hundred fifty-five thousand, seven hundred forty-four".