1440993 has 8 divisors (see below), whose sum is σ = 1934656. Its totient is φ = 954000.

The previous prime is 1440983. The next prime is 1441001. The reversal of 1440993 is 3990441.

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

It is not a de Polignac number, because 1440993 - 2⁵ = 1440961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1440993.

It is not an unprimeable number, because it can be changed into a prime (1440913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1138 + ... + 2043.

It is an arithmetic number, because the mean of its divisors is an integer number (241832).

2^1440993 is an apocalyptic number.

It is an amenable number.

1440993 is a deficient number, since it is larger than the sum of its proper divisors (493663).

1440993 is a wasteful number, since it uses less digits than its factorization.

1440993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1440993 is about 1200.4136786958. The cubic root of 1440993 is about 112.9502744120.

The spelling of 1440993 in words is "one million, four hundred forty thousand, nine hundred ninety-three".