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4043425 = 52197821
BaseRepresentation
bin1111011011001010100001
321121102112111
433123022201
52013342200
6222355321
746240261
oct17331241
97542474
104043425
112311981
12142bb41
13ab7579
147737a1
1554d0ba
hex3db2a1

4043425 has 12 divisors (see below), whose sum is σ = 5045436. Its totient is φ = 3214400.

The previous prime is 4043411. The next prime is 4043437. The reversal of 4043425 is 5243404.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 15376 + 4028049 = 124^2 + 2007^2 .

It is not a de Polignac number, because 4043425 - 219 = 3519137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4043396 and 4043405.

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, 4515 + ... + 5335.

It is an arithmetic number, because the mean of its divisors is an integer number (420453).

Almost surely, 24043425 is an apocalyptic number.

4043425 is the 1642-nd pentagonal number.

It is an amenable number.

4043425 is a deficient number, since it is larger than the sum of its proper divisors (1002011).

4043425 is a wasteful number, since it uses less digits than its factorization.

4043425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028 (or 1023 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 4043425 is about 2010.8269443192. The cubic root of 4043425 is about 159.3124796425.

Adding to 4043425 its reverse (5243404), we get a palindrome (9286829).

The spelling of 4043425 in words is "four million, forty-three thousand, four hundred twenty-five".

Divisors: 1 5 25 197 821 985 4105 4925 20525 161737 808685 4043425