440478445 has 16 divisors (see below), whose sum is σ = 577766592. Its totient is φ = 319714560.

The previous prime is 440478443. The next prime is 440478469. The reversal of 440478445 is 544874044.

It is not a de Polignac number, because 440478445 - 2¹ = 440478443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 440478398 and 440478407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440478443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21109 + ... + 36421.

It is an arithmetic number, because the mean of its divisors is an integer number (36110412).

Almost surely, 2^440478445 is an apocalyptic number.

It is an amenable number.

440478445 is a deficient number, since it is larger than the sum of its proper divisors (137288147).

440478445 is a wasteful number, since it uses less digits than its factorization.

440478445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15852.

The product of its (nonzero) digits is 286720, while the sum is 40.

The square root of 440478445 is about 20987.5783500622. The cubic root of 440478445 is about 760.8660746514.

The spelling of 440478445 in words is "four hundred forty million, four hundred seventy-eight thousand, four hundred forty-five".