40132226421 has 72 divisors (see below), whose sum is σ = 68495330904. Its totient is φ = 22574039040.

The previous prime is 40132226389. The next prime is 40132226447. The reversal of 40132226421 is 12462223104.

40132226421 is a `hidden beast` number, since 4 + 0 + 13 + 2 + 2 + 2 + 642 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8576612100 + 31555614321 = 92610^2 + 177639^2 .

It is not a de Polignac number, because 40132226421 - 2⁵ = 40132226389 is a prime.

It is a super-2 number, since 2×40132226421² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40132226221) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8253531 + ... + 8258391.

Almost surely, 2^40132226421 is an apocalyptic number.

It is an amenable number.

40132226421 is a deficient number, since it is larger than the sum of its proper divisors (28363104483).

40132226421 is a wasteful number, since it uses less digits than its factorization.

40132226421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171 (or 5161 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 40132226421 its reverse (12462223104), we get a palindrome (52594449525).

The spelling of 40132226421 in words is "forty billion, one hundred thirty-two million, two hundred twenty-six thousand, four hundred twenty-one".