44433002421 has 12 divisors (see below), whose sum is σ = 64185953260. Its totient is φ = 29619717120.

The previous prime is 44433002359. The next prime is 44433002437. The reversal of 44433002421 is 12420033444.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1848140100 + 42584862321 = 42990^2 + 206361^2 .

It is not a de Polignac number, because 44433002421 - 2⁹ = 44433001909 is a prime.

It is a super-2 number, since 2×44433002421² (a number of 22 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 (44433002321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62686 + ... + 304623.

Almost surely, 2^44433002421 is an apocalyptic number.

It is an amenable number.

44433002421 is a deficient number, since it is larger than the sum of its proper divisors (19752950839).

44433002421 is a wasteful number, since it uses less digits than its factorization.

44433002421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380756 (or 380753 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 44433002421 its reverse (12420033444), we get a palindrome (56853035865).

The spelling of 44433002421 in words is "forty-four billion, four hundred thirty-three million, two thousand, four hundred twenty-one".