40444062624421 has 8 divisors (see below), whose sum is σ = 42122175617664. Its totient is φ = 38796740695440.

The previous prime is 40444062624401. The next prime is 40444062624439. The reversal of 40444062624421 is 12442626044404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40444062624421 is a prime.

It is a super-2 number, since 2×40444062624421² (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 (40444062624401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7697763385 + ... + 7697768638.

It is an arithmetic number, because the mean of its divisors is an integer number (5265271952208).

Almost surely, 2^{40444062624421} is an apocalyptic number.

It is an amenable number.

40444062624421 is a deficient number, since it is larger than the sum of its proper divisors (1678112993243).

40444062624421 is a wasteful number, since it uses less digits than its factorization.

40444062624421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15395532131.

The product of its (nonzero) digits is 1179648, while the sum is 43.

Adding to 40444062624421 its reverse (12442626044404), we get a palindrome (52886688668825).

The spelling of 40444062624421 in words is "forty trillion, four hundred forty-four billion, sixty-two million, six hundred twenty-four thousand, four hundred twenty-one".