41809920 has 96 divisors (see below), whose sum is σ = 133857360. Its totient is φ = 11141120.

The previous prime is 41809913. The next prime is 41809927. The reversal of 41809920 is 2990814.

It is an interprime number because it is at equal distance from previous prime (41809913) and next prime (41809927).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41809927) 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, 30040 + ... + 31400.

Almost surely, 2^41809920 is an apocalyptic number.

41809920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 41809920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66928680).

41809920 is an abundant number, since it is smaller than the sum of its proper divisors (92047440).

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

41809920 is a wasteful number, since it uses less digits than its factorization.

41809920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1371 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 41809920 is about 6466.0590779856. The cubic root of 41809920 is about 347.0774879756.

The spelling of 41809920 in words is "forty-one million, eight hundred nine thousand, nine hundred twenty".