44101421 has 12 divisors (see below), whose sum is σ = 55248732. Its totient is φ = 34892928.

The previous prime is 44101403. The next prime is 44101423. The reversal of 44101421 is 12410144.

44101421 = T₅ + T₆ + ... + T₆₄₁.

It can be written as a sum of positive squares in 2 ways, for example, as 29278921 + 14822500 = 5411^2 + 3850^2 .

It is a de Polignac number, because none of the positive numbers 2^k-44101421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44101421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44101423) 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, 33980 + ... + 35253.

It is an arithmetic number, because the mean of its divisors is an integer number (4604061).

Almost surely, 2^44101421 is an apocalyptic number.

It is an amenable number.

44101421 is a deficient number, since it is larger than the sum of its proper divisors (11147311).

44101421 is a wasteful number, since it uses less digits than its factorization.

44101421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69260 (or 69253 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 44101421 is about 6640.8900758859. The cubic root of 44101421 is about 353.3058764907.

Adding to 44101421 its reverse (12410144), we get a palindrome (56511565).

The spelling of 44101421 in words is "forty-four million, one hundred one thousand, four hundred twenty-one".