440022405 has 16 divisors (see below), whose sum is σ = 705225600. Its totient is φ = 234282048.

The previous prime is 440022391. The next prime is 440022409. The reversal of 440022405 is 504220044.

It is not a de Polignac number, because 440022405 - 2¹⁰ = 440021381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440022409) 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, 15502 + ... + 33471.

It is an arithmetic number, because the mean of its divisors is an integer number (44076600).

Almost surely, 2^440022405 is an apocalyptic number.

It is an amenable number.

440022405 is a deficient number, since it is larger than the sum of its proper divisors (265203195).

440022405 is a wasteful number, since it uses less digits than its factorization.

440022405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49580.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 440022405 is about 20976.7110148374. The cubic root of 440022405 is about 760.6034018044.

Adding to 440022405 its reverse (504220044), we get a palindrome (944242449).

The spelling of 440022405 in words is "four hundred forty million, twenty-two thousand, four hundred five".