40094641 has 2 divisors, whose sum is σ = 40094642. Its totient is φ = 40094640.

The previous prime is 40094603. The next prime is 40094647. The reversal of 40094641 is 14649004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28398241 + 11696400 = 5329^2 + 3420^2 .

It is a cyclic number.

It is not a de Polignac number, because 40094641 - 2¹¹ = 40092593 is a prime.

It is not a weakly prime, because it can be changed into another prime (40094647) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20047320 + 20047321.

It is an arithmetic number, because the mean of its divisors is an integer number (20047321).

Almost surely, 2^40094641 is an apocalyptic number.

It is an amenable number.

40094641 is a deficient number, since it is larger than the sum of its proper divisors (1).

40094641 is an equidigital number, since it uses as much as digits as its factorization.

40094641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 40094641 is about 6332.0329278992. The cubic root of 40094641 is about 342.2646999466.

The spelling of 40094641 in words is "forty million, ninety-four thousand, six hundred forty-one".