41809128 has 32 divisors (see below), whose sum is σ = 104683200. Its totient is φ = 13915008.

The previous prime is 41809123. The next prime is 41809129. The reversal of 41809128 is 82190814.

It is not an unprimeable number, because it can be changed into a prime (41809123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26325 + ... + 27867.

It is an arithmetic number, because the mean of its divisors is an integer number (3271350).

Almost surely, 2^41809128 is an apocalyptic number.

It is an amenable number.

41809128 is an abundant number, since it is smaller than the sum of its proper divisors (62874072).

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

41809128 is a wasteful number, since it uses less digits than its factorization.

41809128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681 (or 2677 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 41809128 is about 6465.9978348280. The cubic root of 41809128 is about 347.0752964135.

The spelling of 41809128 in words is "forty-one million, eight hundred nine thousand, one hundred twenty-eight".