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4238869 = 10141969
BaseRepresentation
bin10000001010111000010101
321222100122011
4100022320111
52041120434
6230504221
751013135
oct20127025
97870564
104238869
1124357a8
121505071
13b5550b
147c4ac5
1558ae64
hex40ae15

4238869 has 4 divisors (see below), whose sum is σ = 4280940. Its totient is φ = 4196800.

The previous prime is 4238851. The next prime is 4238873. The reversal of 4238869 is 9688324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3104644 + 1134225 = 1762^2 + 1065^2 .

It is a cyclic number.

It is not a de Polignac number, because 4238869 - 25 = 4238837 is a prime.

It is a super-2 number, since 2×42388692 = 35936020798322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4233869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20884 + ... + 21085.

It is an arithmetic number, because the mean of its divisors is an integer number (1070235).

Almost surely, 24238869 is an apocalyptic number.

It is an amenable number.

4238869 is a deficient number, since it is larger than the sum of its proper divisors (42071).

4238869 is a wasteful number, since it uses less digits than its factorization.

4238869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42070.

The product of its digits is 82944, while the sum is 40.

The square root of 4238869 is about 2058.8513788032. The cubic root of 4238869 is about 161.8390541971.

The spelling of 4238869 in words is "four million, two hundred thirty-eight thousand, eight hundred sixty-nine".

Divisors: 1 101 41969 4238869