4400033421 has 16 divisors (see below), whose sum is σ = 6719760000. Its totient is φ = 2508699648.

The previous prime is 4400033419. The next prime is 4400033441. The reversal of 4400033421 is 1243300044.

4400033421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4400033421 - 2¹ = 4400033419 is a prime.

It is a super-3 number, since 3×4400033421³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400033441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223896 + ... + 242753.

It is an arithmetic number, because the mean of its divisors is an integer number (419985000).

Almost surely, 2^4400033421 is an apocalyptic number.

It is an amenable number.

4400033421 is a deficient number, since it is larger than the sum of its proper divisors (2319726579).

4400033421 is a wasteful number, since it uses less digits than its factorization.

4400033421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467108.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 4400033421 is about 66332.7477268958. The cubic root of 4400033421 is about 1638.6466900599.

Adding to 4400033421 its reverse (1243300044), we get a palindrome (5643333465).

It can be divided in two parts, 44000 and 33421, that added together give a triangular number (77421 = T₃₉₃).

The spelling of 4400033421 in words is "four billion, four hundred million, thirty-three thousand, four hundred twenty-one".