40124401421309 has 8 divisors (see below), whose sum is σ = 41214283666488. Its totient is φ = 39034805437440.

The previous prime is 40124401421303. The next prime is 40124401421311. The reversal of 40124401421309 is 90312410442104.

It can be written as a sum of positive squares in 4 ways, for example, as 97546905625 + 40026854515684 = 312325^2 + 6326678^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40124401421309 - 2⁸ = 40124401421053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40124401421303) 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, 71281172 + ... + 71841869.

It is an arithmetic number, because the mean of its divisors is an integer number (5151785458311).

Almost surely, 2^{40124401421309} is an apocalyptic number.

It is an amenable number.

40124401421309 is a deficient number, since it is larger than the sum of its proper divisors (1089882245179).

40124401421309 is a wasteful number, since it uses less digits than its factorization.

40124401421309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143130655.

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 40124401421309 in words is "forty trillion, one hundred twenty-four billion, four hundred one million, four hundred twenty-one thousand, three hundred nine".