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440440022 = 21120020001
BaseRepresentation
bin11010010000001…
…001010011010110
31010200202200010102
4122100021103112
51400223040042
6111412054102
713625451461
oct3220112326
91120680112
10440440022
11206687120
12103604332
13703304c9
14426d02d8
1528a00b32
hex1a4094d6

440440022 has 8 divisors (see below), whose sum is σ = 720720072. Its totient is φ = 200200000.

The previous prime is 440440009. The next prime is 440440027. The reversal of 440440022 is 220044044.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 440439976 and 440440003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440440027) 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, 10009979 + ... + 10010022.

It is an arithmetic number, because the mean of its divisors is an integer number (90090009).

Almost surely, 2440440022 is an apocalyptic number.

440440022 is a deficient number, since it is larger than the sum of its proper divisors (280280050).

440440022 is a wasteful number, since it uses less digits than its factorization.

440440022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20020014.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 440440022 is about 20986.6629553152. The cubic root of 440440022 is about 760.8439505213.

Adding to 440440022 its reverse (220044044), we get a palindrome (660484066).

The spelling of 440440022 in words is "four hundred forty million, four hundred forty thousand, twenty-two".

Divisors: 1 2 11 22 20020001 40040002 220220011 440440022