4428373 has 4 divisors (see below), whose sum is σ = 4478220. Its totient is φ = 4378528.

The previous prime is 4428353. The next prime is 4428379. The reversal of 4428373 is 3738244.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 339889 + 4088484 = 583^2 + 2022^2 .

It is a cyclic number.

It is not a de Polignac number, because 4428373 - 2¹⁷ = 4297301 is a prime.

It is a super-2 number, since 2×4428373² = 39220974854258, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4⁶ + 4¹¹ + 2⁵ + 8⁵ + 3⁹ + 7³ + 3¹¹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4428379) 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, 24790 + ... + 24967.

It is an arithmetic number, because the mean of its divisors is an integer number (1119555).

Almost surely, 2^4428373 is an apocalyptic number.

It is an amenable number.

4428373 is a deficient number, since it is larger than the sum of its proper divisors (49847).

4428373 is an equidigital number, since it uses as much as digits as its factorization.

4428373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49846.

The product of its digits is 16128, while the sum is 31.

The square root of 4428373 is about 2104.3699769765. The cubic root of 4428373 is about 164.2157209805.

The spelling of 4428373 in words is "four million, four hundred twenty-eight thousand, three hundred seventy-three".