4445408 has 48 divisors (see below), whose sum is σ = 9734256. Its totient is φ = 1981440.

The previous prime is 4445393. The next prime is 4445429. The reversal of 4445408 is 8045444.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25610 + ... + 25782.

It is an arithmetic number, because the mean of its divisors is an integer number (202797).

Almost surely, 2^4445408 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 4445408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4867128).

4445408 is an abundant number, since it is smaller than the sum of its proper divisors (5288848).

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

4445408 is a wasteful number, since it uses less digits than its factorization.

4445408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

The square root of 4445408 is about 2108.4136216597. The cubic root of 4445408 is about 164.4260190919.

It can be divided in two parts, 4445 and 408, that multiplied together give a triangular number (1813560 = T₁₉₀₄).

The spelling of 4445408 in words is "four million, four hundred forty-five thousand, four hundred eight".