1000440353 has 4 divisors (see below), whose sum is σ = 1091389488. Its totient is φ = 909491220.

The previous prime is 1000440313. The next prime is 1000440359. The reversal of 1000440353 is 3530440001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1000440353 - 2⁸ = 1000440097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000440359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45474551 + ... + 45474572.

It is an arithmetic number, because the mean of its divisors is an integer number (272847372).

Almost surely, 2^1000440353 is an apocalyptic number.

It is an amenable number.

1000440353 is a deficient number, since it is larger than the sum of its proper divisors (90949135).

1000440353 is an equidigital number, since it uses as much as digits as its factorization.

1000440353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90949134.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1000440353 is about 31629.7384276254. The cubic root of 1000440353 is about 1000.1467627930.

Adding to 1000440353 its reverse (3530440001), we get a palindrome (4530880354).

The spelling of 1000440353 in words is "one billion, four hundred forty thousand, three hundred fifty-three".