40421442404421 has 40 divisors (see below), whose sum is σ = 65028757457664. Its totient is φ = 24874240402080.

The previous prime is 40421442404393. The next prime is 40421442404437. The reversal of 40421442404421 is 12440424412404.

40421442404421 is a `hidden beast` number, since 404 + 2 + 1 + 4 + 4 + 240 + 4 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 40421442404421 - 2³⁴ = 40404262535237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40421442404461) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 56810656 + ... + 57517766.

Almost surely, 2^{40421442404421} is an apocalyptic number.

It is an amenable number.

40421442404421 is a deficient number, since it is larger than the sum of its proper divisors (24607315053243).

40421442404421 is a wasteful number, since it uses less digits than its factorization.

40421442404421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761423 (or 761414 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 36.

Adding to 40421442404421 its reverse (12440424412404), we get a palindrome (52861866816825).

The spelling of 40421442404421 in words is "forty trillion, four hundred twenty-one billion, four hundred forty-two million, four hundred four thousand, four hundred twenty-one".