41440142421 has 12 divisors (see below), whose sum is σ = 61317934860. Its totient is φ = 26952937920.

The previous prime is 41440142399. The next prime is 41440142431. The reversal of 41440142421 is 12424104414.

It is a happy number.

41440142421 is a `hidden beast` number, since 4 + 14 + 401 + 4 + 242 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16881804900 + 24558337521 = 129930^2 + 156711^2 .

It is not a de Polignac number, because 41440142421 - 2²⁶ = 41373033557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41440142431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56151586 + ... + 56152323.

It is an arithmetic number, because the mean of its divisors is an integer number (5109827905).

Almost surely, 2^41440142421 is an apocalyptic number.

41440142421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

41440142421 is a deficient number, since it is larger than the sum of its proper divisors (19877792439).

41440142421 is a wasteful number, since it uses less digits than its factorization.

41440142421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112303956 (or 112303953 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 41440142421 its reverse (12424104414), we get a palindrome (53864246835).

The spelling of 41440142421 in words is "forty-one billion, four hundred forty million, one hundred forty-two thousand, four hundred twenty-one".