4072144 has 20 divisors (see below), whose sum is σ = 7950880. Its totient is φ = 2020320.

The previous prime is 4072139. The next prime is 4072147. The reversal of 4072144 is 4412704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4072147) 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, 1309 + ... + 3139.

It is an arithmetic number, because the mean of its divisors is an integer number (397544).

Almost surely, 2^4072144 is an apocalyptic number.

It is an amenable number.

4072144 is a deficient number, since it is larger than the sum of its proper divisors (3878736).

4072144 is a wasteful number, since it uses less digits than its factorization.

4072144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978 (or 1972 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 4072144 is about 2017.9554008947. The cubic root of 4072144 is about 159.6887699918.

Adding to 4072144 its reverse (4412704), we get a palindrome (8484848).

The spelling of 4072144 in words is "four million, seventy-two thousand, one hundred forty-four".