4072644 has 72 divisors (see below), whose sum is σ = 11007360. Its totient is φ = 1267392.

The previous prime is 4072637. The next prime is 4072661. The reversal of 4072644 is 4462704.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49027 + ... + 49109.

It is an arithmetic number, because the mean of its divisors is an integer number (152880).

Almost surely, 2^4072644 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 4072644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5503680).

4072644 is an abundant number, since it is smaller than the sum of its proper divisors (6934716).

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

4072644 is a wasteful number, since it uses less digits than its factorization.

4072644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 4072644 is about 2018.0792848647. The cubic root of 4072644 is about 159.6953055430.

The spelling of 4072644 in words is "four million, seventy-two thousand, six hundred forty-four".