40454641 has 8 divisors (see below), whose sum is σ = 41034600. Its totient is φ = 39878400.

The previous prime is 40454563. The next prime is 40454647. The reversal of 40454641 is 14645404.

40454641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2890000 + 37564641 = 1700^2 + 6129^2 .

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 40454641 - 2⁹ = 40454129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40454647) 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, 26425 + ... + 27913.

It is an arithmetic number, because the mean of its divisors is an integer number (5129325).

Almost surely, 2^40454641 is an apocalyptic number.

It is an amenable number.

40454641 is a deficient number, since it is larger than the sum of its proper divisors (579959).

40454641 is a wasteful number, since it uses less digits than its factorization.

40454641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 40454641 is about 6360.3962926849. The cubic root of 40454641 is about 343.2860197053.

Adding to 40454641 its product of nonzero digits (7680), we get a square (40462321 = 6361²).

The spelling of 40454641 in words is "forty million, four hundred fifty-four thousand, six hundred forty-one".