441990 has 32 divisors (see below), whose sum is σ = 1179360. Its totient is φ = 117792.

The previous prime is 441971. The next prime is 442003. The reversal of 441990 is 99144.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

441990 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549 + ... + 1088.

It is an arithmetic number, because the mean of its divisors is an integer number (36855).

2⁴⁴¹⁹⁹⁰ is an apocalyptic number.

441990 is an abundant number, since it is smaller than the sum of its proper divisors (737370).

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

441990 is a wasteful number, since it uses less digits than its factorization.

441990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653 (or 1647 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 441990 is about 664.8232847908. The cubic root of 441990 is about 76.1735415612.

It can be divided in two parts, 441 and 990, that added together give a triangular number (1431 = T₅₃).

The spelling of 441990 in words is "four hundred forty-one thousand, nine hundred ninety".