440404426 has 48 divisors (see below), whose sum is σ = 833112000. Its totient is φ = 170913600.

The previous prime is 440404421. The next prime is 440404453. The reversal of 440404426 is 624404044.

It is a junction number, because it is equal to n+sod(n) for n = 440404394 and 440404403.

It is not an unprimeable number, because it can be changed into a prime (440404421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 845046 + ... + 845566.

It is an arithmetic number, because the mean of its divisors is an integer number (17356500).

Almost surely, 2^440404426 is an apocalyptic number.

440404426 is a deficient number, since it is larger than the sum of its proper divisors (392707574).

440404426 is a wasteful number, since it uses less digits than its factorization.

440404426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 440404426 is about 20985.8148757679. The cubic root of 440404426 is about 760.8234530418.

The spelling of 440404426 in words is "four hundred forty million, four hundred four thousand, four hundred twenty-six".