40421115412 has 12 divisors (see below), whose sum is σ = 70738691380. Its totient is φ = 20210060736.

The previous prime is 40421115401. The next prime is 40421115421. The reversal of 40421115412 is 21451112404.

It can be written as a sum of positive squares in 2 ways, for example, as 27560648196 + 12860467216 = 166014^2 + 113404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106288 + ... + 303544.

Almost surely, 2^40421115412 is an apocalyptic number.

It is an amenable number.

40421115412 is a deficient number, since it is larger than the sum of its proper divisors (30317575968).

40421115412 is a wasteful number, since it uses less digits than its factorization.

40421115412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248490 (or 248488 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 40421115412 its reverse (21451112404), we get a palindrome (61872227816).

The spelling of 40421115412 in words is "forty billion, four hundred twenty-one million, one hundred fifteen thousand, four hundred twelve".