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2243844 = 2232157397
BaseRepresentation
bin1000100011110100000100
311012222222100
420203310010
51033300334
6120032100
725033551
oct10436404
94188870
102243844
1112a2919
12902630
13607425
14425a28
152e4c99
hex223d04

2243844 has 36 divisors (see below), whose sum is σ = 5722444. Its totient is φ = 741312.

The previous prime is 2243833. The next prime is 2243851. The reversal of 2243844 is 4483422.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1077444 + 1166400 = 1038^2 + 1080^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5454 + ... + 5850.

22243844 is an apocalyptic number.

It is an amenable number.

2243844 is an abundant number, since it is smaller than the sum of its proper divisors (3478600).

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

2243844 is a wasteful number, since it uses less digits than its factorization.

2243844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 559 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 2243844 is about 1497.9465945086. The cubic root of 2243844 is about 130.9174547476.

The spelling of 2243844 in words is "two million, two hundred forty-three thousand, eight hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 36 157 314 397 471 628 794 942 1191 1413 1588 1884 2382 2826 3573 4764 5652 7146 14292 62329 124658 186987 249316 373974 560961 747948 1121922 2243844