40954321 has 2 divisors, whose sum is σ = 40954322. Its totient is φ = 40954320.

The previous prime is 40954307. The next prime is 40954339. The reversal of 40954321 is 12345904.

40954321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37344321 + 3610000 = 6111^2 + 1900^2 .

It is a cyclic number.

It is not a de Polignac number, because 40954321 - 2¹¹ = 40952273 is a prime.

It is equal to p_2488141 and since 40954321 and 2488141 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40954321.

It is not a weakly prime, because it can be changed into another prime (40954391) 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 as a sum of consecutive naturals, namely, 20477160 + 20477161.

It is an arithmetic number, because the mean of its divisors is an integer number (20477161).

Almost surely, 2^40954321 is an apocalyptic number.

It is an amenable number.

40954321 is a deficient number, since it is larger than the sum of its proper divisors (1).

40954321 is an equidigital number, since it uses as much as digits as its factorization.

40954321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 40954321 is about 6399.5563127454. The cubic root of 40954321 is about 344.6936186341.

The spelling of 40954321 in words is "forty million, nine hundred fifty-four thousand, three hundred twenty-one".