40340121 has 8 divisors (see below), whose sum is σ = 53961024. Its totient is φ = 26806320.

The previous prime is 40340119. The next prime is 40340123. The reversal of 40340121 is 12104304.

40340121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40340119) and next prime (40340123).

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

It is not a de Polignac number, because 40340121 - 2¹ = 40340119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40340121.

It is not an unprimeable number, because it can be changed into a prime (40340123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20686 + ... + 22551.

It is an arithmetic number, because the mean of its divisors is an integer number (6745128).

Almost surely, 2^40340121 is an apocalyptic number.

It is an amenable number.

40340121 is a deficient number, since it is larger than the sum of its proper divisors (13620903).

40340121 is a wasteful number, since it uses less digits than its factorization.

40340121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43551.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 40340121 is about 6351.3873287653. The cubic root of 40340121 is about 342.9617860398.

Adding to 40340121 its reverse (12104304), we get a palindrome (52444425).

The spelling of 40340121 in words is "forty million, three hundred forty thousand, one hundred twenty-one".