44453421 has 8 divisors (see below), whose sum is σ = 65856960. Its totient is φ = 29635596.

The previous prime is 44453417. The next prime is 44453441. The reversal of 44453421 is 12435444.

It is a happy number.

44453421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44453421 - 2² = 44453417 is a prime.

It is a super-2 number, since 2×44453421² = 3952213277206482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1646423 = 44453421 / (4 + 4 + 4 + 5 + 3 + 4 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44453401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 823185 + ... + 823238.

It is an arithmetic number, because the mean of its divisors is an integer number (8232120).

Almost surely, 2^44453421 is an apocalyptic number.

It is an amenable number.

44453421 is a deficient number, since it is larger than the sum of its proper divisors (21403539).

44453421 is a wasteful number, since it uses less digits than its factorization.

44453421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646432 (or 1646426 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 44453421 is about 6667.3398743427. The cubic root of 44453421 is about 354.2433689897.

Adding to 44453421 its reverse (12435444), we get a palindrome (56888865).

The spelling of 44453421 in words is "forty-four million, four hundred fifty-three thousand, four hundred twenty-one".