10444300421 has 4 divisors (see below), whose sum is σ = 11058671052. Its totient is φ = 9829929792.

The previous prime is 10444300411. The next prime is 10444300453. The reversal of 10444300421 is 12400344401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5344341025 + 5099959396 = 73105^2 + 71414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10444300421 is a prime.

It is a super-2 number, since 2×10444300421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10444300411) 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, 307185290 + ... + 307185323.

It is an arithmetic number, because the mean of its divisors is an integer number (2764667763).

Almost surely, 2^10444300421 is an apocalyptic number.

It is an amenable number.

10444300421 is a deficient number, since it is larger than the sum of its proper divisors (614370631).

10444300421 is an equidigital number, since it uses as much as digits as its factorization.

10444300421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614370630.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 10444300421 its reverse (12400344401), we get a palindrome (22844644822).

The spelling of 10444300421 in words is "ten billion, four hundred forty-four million, three hundred thousand, four hundred twenty-one".