1441991 has 8 divisors (see below), whose sum is σ = 1537344. Its totient is φ = 1347840.

The previous prime is 1441981. The next prime is 1442003. The reversal of 1441991 is 1991441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1441991 - 2¹⁴ = 1425607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1441931) 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, 4451 + ... + 4763.

It is an arithmetic number, because the mean of its divisors is an integer number (192168).

2^1441991 is an apocalyptic number.

1441991 is a deficient number, since it is larger than the sum of its proper divisors (95353).

1441991 is a wasteful number, since it uses less digits than its factorization.

1441991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601.

The product of its digits is 1296, while the sum is 29.

The square root of 1441991 is about 1200.8292967779. The cubic root of 1441991 is about 112.9763440182.

The spelling of 1441991 in words is "one million, four hundred forty-one thousand, nine hundred ninety-one".