40423340323421 has 8 divisors (see below), whose sum is σ = 44756371376544. Its totient is φ = 36200006259120.

The previous prime is 40423340323403. The next prime is 40423340323433. The reversal of 40423340323421 is 12432304332404.

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

It is not a de Polignac number, because 40423340323421 - 2³⁰ = 40422266581597 is a prime.

It is a super-2 number, since 2×40423340323421² (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 (40423340323921) 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, 27424246430 + ... + 27424247903.

It is an arithmetic number, because the mean of its divisors is an integer number (5594546422068).

Almost surely, 2^{40423340323421} is an apocalyptic number.

It is an amenable number.

40423340323421 is a deficient number, since it is larger than the sum of its proper divisors (4333031053123).

40423340323421 is a wasteful number, since it uses less digits than its factorization.

40423340323421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54848494411.

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 40423340323421 its reverse (12432304332404), we get a palindrome (52855644655825).

The spelling of 40423340323421 in words is "forty trillion, four hundred twenty-three billion, three hundred forty million, three hundred twenty-three thousand, four hundred twenty-one".