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2042442 = 233109347
BaseRepresentation
bin111110010101001001010
310211202201000
413302221022
51010324232
6111435430
723234433
oct7625112
93752630
102042442
111175576
12825b76
1356685c
143b248a
152a527c
hex1f2a4a

2042442 has 32 divisors (see below), whose sum is σ = 4593600. Its totient is φ = 672624.

The previous prime is 2042429. The next prime is 2042449. The reversal of 2042442 is 2442402.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2042449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5713 + ... + 6059.

It is an arithmetic number, because the mean of its divisors is an integer number (143550).

22042442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2042442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2296800).

2042442 is an abundant number, since it is smaller than the sum of its proper divisors (2551158).

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

2042442 is a wasteful number, since it uses less digits than its factorization.

2042442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 2042442 is about 1429.1403010202. The cubic root of 2042442 is about 126.8771001941.

Adding to 2042442 its reverse (2442402), we get a palindrome (4484844).

The spelling of 2042442 in words is "two million, forty-two thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 109 218 327 347 654 694 981 1041 1962 2082 2943 3123 5886 6246 9369 18738 37823 75646 113469 226938 340407 680814 1021221 2042442