4445263 has 4 divisors (see below), whose sum is σ = 4455328. Its totient is φ = 4435200.

The previous prime is 4445257. The next prime is 4445267. The reversal of 4445263 is 3625444.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4445263 is a prime.

It is a super-3 number, since 3×4445263³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4445267) 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, 4338 + ... + 5263.

It is an arithmetic number, because the mean of its divisors is an integer number (1113832).

Almost surely, 2^4445263 is an apocalyptic number.

4445263 is a deficient number, since it is larger than the sum of its proper divisors (10065).

4445263 is an equidigital number, since it uses as much as digits as its factorization.

4445263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10064.

The product of its digits is 11520, while the sum is 28.

The square root of 4445263 is about 2108.3792353369. The cubic root of 4445263 is about 164.4242313271.

The spelling of 4445263 in words is "four million, four hundred forty-five thousand, two hundred sixty-three".