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1444404 = 2231347197
BaseRepresentation
bin101100000101000110100
32201101100110
411200220310
5332210104
650543020
715164043
oct5405064
92641313
101444404
118a7225
12597a70
133b75a0
1429855a
151d7e89
hex160a34

1444404 has 48 divisors (see below), whose sum is σ = 3725568. Its totient is φ = 432768.

The previous prime is 1444309. The next prime is 1444411. The reversal of 1444404 is 4044441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7234 + ... + 7430.

It is an arithmetic number, because the mean of its divisors is an integer number (77616).

21444404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1444404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1862784).

1444404 is an abundant number, since it is smaller than the sum of its proper divisors (2281164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1444404 is a wasteful number, since it uses less digits than its factorization.

1444404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 1444404 is about 1201.8335991309. The cubic root of 1444404 is about 113.0393263804.

Adding to 1444404 its reverse (4044441), we get a palindrome (5488845).

The spelling of 1444404 in words is "one million, four hundred forty-four thousand, four hundred four".

Divisors: 1 2 3 4 6 12 13 26 39 47 52 78 94 141 156 188 197 282 394 564 591 611 788 1182 1222 1833 2364 2444 2561 3666 5122 7332 7683 9259 10244 15366 18518 27777 30732 37036 55554 111108 120367 240734 361101 481468 722202 1444404