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2012444 = 227411753
BaseRepresentation
bin111101011010100011100
310210020112222
413223110130
51003344234
6111044512
723051120
oct7532434
93706488
102012444
111154a85
12810738
13555cc5
143a5580
1529b42e
hex1eb51c

2012444 has 24 divisors (see below), whose sum is σ = 4125408. Its totient is φ = 840960.

The previous prime is 2012429. The next prime is 2012447. The reversal of 2012444 is 4442102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272 + ... + 2024.

It is an arithmetic number, because the mean of its divisors is an integer number (171892).

22012444 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 2012444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2062704).

2012444 is an abundant number, since it is smaller than the sum of its proper divisors (2112964).

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

2012444 is a wasteful number, since it uses less digits than its factorization.

2012444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805 (or 1803 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2012444 is about 1418.6063583673. The cubic root of 2012444 is about 126.2528725288.

Adding to 2012444 its reverse (4442102), we get a palindrome (6454546).

The spelling of 2012444 in words is "two million, twelve thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 28 41 82 164 287 574 1148 1753 3506 7012 12271 24542 49084 71873 143746 287492 503111 1006222 2012444