40974121 has 4 divisors (see below), whose sum is σ = 41372032. Its totient is φ = 40576212.

The previous prime is 40974119. The next prime is 40974149. The reversal of 40974121 is 12147904.

40974121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40974121 - 2¹ = 40974119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40974121.

It is not an unprimeable number, because it can be changed into a prime (40974191) 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 3 ways as a sum of consecutive naturals, for example, 198801 + ... + 199006.

It is an arithmetic number, because the mean of its divisors is an integer number (10343008).

Almost surely, 2^40974121 is an apocalyptic number.

It is an amenable number.

40974121 is a deficient number, since it is larger than the sum of its proper divisors (397911).

40974121 is a wasteful number, since it uses less digits than its factorization.

40974121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397910.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 40974121 is about 6401.1031080588. The cubic root of 40974121 is about 344.7491588385.

The spelling of 40974121 in words is "forty million, nine hundred seventy-four thousand, one hundred twenty-one".