40340373401 has 2 divisors, whose sum is σ = 40340373402. Its totient is φ = 40340373400.

The previous prime is 40340373373. The next prime is 40340373419. The reversal of 40340373401 is 10437304304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37432575625 + 2907797776 = 193475^2 + 53924^2 .

It is a cyclic number.

It is not a de Polignac number, because 40340373401 - 2²² = 40336179097 is a prime.

It is a super-2 number, since 2×40340373401² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40340373001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20170186700 + 20170186701.

It is an arithmetic number, because the mean of its divisors is an integer number (20170186701).

Almost surely, 2^40340373401 is an apocalyptic number.

It is an amenable number.

40340373401 is a deficient number, since it is larger than the sum of its proper divisors (1).

40340373401 is an equidigital number, since it uses as much as digits as its factorization.

40340373401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 29.

Adding to 40340373401 its reverse (10437304304), we get a palindrome (50777677705).

The spelling of 40340373401 in words is "forty billion, three hundred forty million, three hundred seventy-three thousand, four hundred one".