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2040042 = 23340007
BaseRepresentation
bin111110010000011101010
310211122102010
413302003222
51010240132
6111420350
723224434
oct7620352
93748363
102040042
111173794
128246b6
13565734
143b1654
152a46cc
hex1f20ea

2040042 has 8 divisors (see below), whose sum is σ = 4080096. Its totient is φ = 680012.

The previous prime is 2040041. The next prime is 2040047. The reversal of 2040042 is 2400402.

It is a sphenic number, since it is the product of 3 distinct primes.

2040042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2040041) 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 3 ways as a sum of consecutive naturals, for example, 169998 + ... + 170009.

It is an arithmetic number, because the mean of its divisors is an integer number (510012).

22040042 is an apocalyptic number.

2040042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2040042 is a wasteful number, since it uses less digits than its factorization.

2040042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340012.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 2040042 is about 1428.3003885738. The cubic root of 2040042 is about 126.8273844798.

Adding to 2040042 its reverse (2400402), we get a palindrome (4440444).

The spelling of 2040042 in words is "two million, forty thousand, forty-two", and thus it is an eban number.

Divisors: 1 2 3 6 340007 680014 1020021 2040042