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4523838 = 231168543

4523838 has 16 divisors (see below), whose sum is σ = 9870336. Its totient is φ = 1370840.

The previous prime is 4523837. The next prime is 4523851. The reversal of 4523838 is 8383254.

It is a super-2 number, since 2×45238382 = 40930220500488, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4523799 and 4523808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4523833) 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 7 ways as a sum of consecutive naturals, for example, 34206 + ... + 34337.

It is an arithmetic number, because the mean of its divisors is an integer number (616896).

Almost surely, 24523838 is an apocalyptic number.

4523838 is an abundant number, since it is smaller than the sum of its proper divisors (5346498).

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

4523838 is a wasteful number, since it uses less digits than its factorization.

4523838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68559.

The product of its digits is 23040, while the sum is 33.

The square root of 4523838 is about 2126.9315926940. The cubic root of 4523838 is about 165.3873726766.

The spelling of 4523838 in words is "four million, five hundred twenty-three thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 11 22 33 66 68543 137086 205629 411258 753973 1507946 2261919 4523838