41990 has 32 divisors (see below), whose sum is σ = 90720. Its totient is φ = 13824.

The previous prime is 41983. The next prime is 41999. The reversal of 41990 is 9914.

It is a nialpdrome in base 6.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 41990.

It is not an unprimeable number, because it can be changed into a prime (41999) by changing a digit.

41990 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2201 + ... + 2219.

It is an arithmetic number, because the mean of its divisors is an integer number (2835).

2⁴¹⁹⁹⁰ is an apocalyptic number.

41990 is an abundant number, since it is smaller than the sum of its proper divisors (48730).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45360).

41990 is a wasteful number, since it uses less digits than its factorization.

41990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 41990 is about 204.9146163650. The cubic root of 41990 is about 34.7575074786.

The spelling of 41990 in words is "forty-one thousand, nine hundred ninety".