4273664 has 40 divisors (see below), whose sum is σ = 9059688. Its totient is φ = 2007040.

The previous prime is 4273631. The next prime is 4273667. The reversal of 4273664 is 4663724.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a d-powerful number, because it can be written as 4⁷ + 2¹³ + 7³ + 3² + 6⁵ + 6⁶ + 4¹¹ .

It is a self number, because there is not a number n which added to its sum of digits gives 4273664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4273667) 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, 8459 + ... + 8949.

Almost surely, 2^4273664 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 4273664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4529844).

4273664 is an abundant number, since it is smaller than the sum of its proper divisors (4786024).

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

4273664 is an equidigital number, since it uses as much as digits as its factorization.

4273664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 510 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 4273664 is about 2067.2842088112. The cubic root of 4273664 is about 162.2806697783.

The spelling of 4273664 in words is "four million, two hundred seventy-three thousand, six hundred sixty-four".