44522040351421 has 4 divisors (see below), whose sum is σ = 44522438931292. Its totient is φ = 44521641771552.

The previous prime is 44522040351361. The next prime is 44522040351461. The reversal of 44522040351421 is 12415304022544.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16304749471396 + 28217290880025 = 4037914^2 + 5311995^2 .

It is a cyclic number.

It is not a de Polignac number, because 44522040351421 - 2³³ = 44513450416829 is a prime.

It is a super-2 number, since 2×44522040351421² (a number of 28 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 (44522040351461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199122336 + ... + 199345801.

It is an arithmetic number, because the mean of its divisors is an integer number (11130609732823).

Almost surely, 2^{44522040351421} is an apocalyptic number.

It is an amenable number.

44522040351421 is a deficient number, since it is larger than the sum of its proper divisors (398579871).

44522040351421 is a wasteful number, since it uses less digits than its factorization.

44522040351421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398579870.

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 44522040351421 its reverse (12415304022544), we get a palindrome (56937344373965).

The spelling of 44522040351421 in words is "forty-four trillion, five hundred twenty-two billion, forty million, three hundred fifty-one thousand, four hundred twenty-one".