440003493 has 6 divisors (see below), whose sum is σ = 635560614. Its totient is φ = 293335656.

The previous prime is 440003489. The next prime is 440003497. The reversal of 440003493 is 394300044.

It is an interprime number because it is at equal distance from previous prime (440003489) and next prime (440003497).

It can be written as a sum of positive squares in only one way, i.e., 346629924 + 93373569 = 18618^2 + 9663^2 .

It is not a de Polignac number, because 440003493 - 2² = 440003489 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440003497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24444630 + ... + 24444647.

It is an arithmetic number, because the mean of its divisors is an integer number (105926769).

Almost surely, 2^440003493 is an apocalyptic number.

It is an amenable number.

440003493 is a deficient number, since it is larger than the sum of its proper divisors (195557121).

440003493 is a wasteful number, since it uses less digits than its factorization.

440003493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48889283 (or 48889280 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 440003493 is about 20976.2602243584. The cubic root of 440003493 is about 760.5925048307.

The spelling of 440003493 in words is "four hundred forty million, three thousand, four hundred ninety-three".