1003622401 has 8 divisors (see below), whose sum is σ = 1039732200. Its totient is φ = 967612800.

The previous prime is 1003622383. The next prime is 1003622467. The reversal of 1003622401 is 1042263001.

It is a Cunningham number, because it is equal to 31680²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 174240000 + 829382401 = 13200^2 + 28799^2 .

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 1003622401 - 2⁵ = 1003622369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1003622101) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4356 + ... + 45013.

It is an arithmetic number, because the mean of its divisors is an integer number (129966525).

Almost surely, 2^1003622401 is an apocalyptic number.

It is an amenable number.

1003622401 is a deficient number, since it is larger than the sum of its proper divisors (36109799).

1003622401 is an equidigital number, since it uses as much as digits as its factorization.

1003622401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50099.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1003622401 is about 31680.0000157828. Note that the first 4 decimals coincide. The cubic root of 1003622401 is about 1001.2060119505.

Adding to 1003622401 its reverse (1042263001), we get a palindrome (2045885402).

The spelling of 1003622401 in words is "one billion, three million, six hundred twenty-two thousand, four hundred one".