44421407 has 2 divisors, whose sum is σ = 44421408. Its totient is φ = 44421406.

The previous prime is 44421397. The next prime is 44421457. The reversal of 44421407 is 70412444.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44421407 - 2¹⁸ = 44159263 is a prime.

It is a super-3 number, since 3×44421407³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44421457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22210703 + 22210704.

It is an arithmetic number, because the mean of its divisors is an integer number (22210704).

Almost surely, 2^44421407 is an apocalyptic number.

44421407 is a deficient number, since it is larger than the sum of its proper divisors (1).

44421407 is an equidigital number, since it uses as much as digits as its factorization.

44421407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 44421407 is about 6664.9386343762. The cubic root of 44421407 is about 354.1583101389.

The spelling of 44421407 in words is "forty-four million, four hundred twenty-one thousand, four hundred seven".