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4440869 = 10143969
BaseRepresentation
bin10000111100001100100101
322100121201122
4100330030211
52114101434
6235103325
752514066
oct20741445
98317648
104440869
112563544
1215a1b45
13bc6444
1483856d
155cac2e
hex43c325

4440869 has 4 divisors (see below), whose sum is σ = 4484940. Its totient is φ = 4396800.

The previous prime is 4440847. The next prime is 4440881. The reversal of 4440869 is 9680444.

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 3751969 + 688900 = 1937^2 + 830^2 .

It is a cyclic number.

It is not a de Polignac number, because 4440869 - 28 = 4440613 is a prime.

It is a super-2 number, since 2×44408692 = 39442634950322, 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 (4440899) 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, 21884 + ... + 22085.

It is an arithmetic number, because the mean of its divisors is an integer number (1121235).

Almost surely, 24440869 is an apocalyptic number.

It is an amenable number.

4440869 is a deficient number, since it is larger than the sum of its proper divisors (44071).

4440869 is a wasteful number, since it uses less digits than its factorization.

4440869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44070.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 4440869 is about 2107.3369450565. The cubic root of 4440869 is about 164.3700374393.

The spelling of 4440869 in words is "four million, four hundred forty thousand, eight hundred sixty-nine".

Divisors: 1 101 43969 4440869