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440422 = 2412131
BaseRepresentation
bin1101011100001100110
3211101010221
41223201212
5103043142
613234554
73513013
oct1534146
9741127
10440422
11280994
12192a5a
13125608
14b670a
158a767
hex6b866

440422 has 12 divisors (see below), whose sum is σ = 682308. Its totient is φ = 213200.

The previous prime is 440399. The next prime is 440431. The reversal of 440422 is 224044.

It is a junction number, because it is equal to n+sod(n) for n = 440396 and 440405.

It is a congruent number.

It is an unprimeable number.

440422 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3297 + ... + 3427.

It is an arithmetic number, because the mean of its divisors is an integer number (56859).

2440422 is an apocalyptic number.

440422 is a deficient number, since it is larger than the sum of its proper divisors (241886).

440422 is a wasteful number, since it uses less digits than its factorization.

440422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 440422 is about 663.6429763058. The cubic root of 440422 is about 76.0833572932.

Adding to 440422 its reverse (224044), we get a palindrome (664466).

It can be divided in two parts, 44042 and 2, that added together give a palindrome (44044).

The spelling of 440422 in words is "four hundred forty thousand, four hundred twenty-two", and thus it is an iban number.

Divisors: 1 2 41 82 131 262 1681 3362 5371 10742 220211 440422