40235353641 has 28 divisors (see below), whose sum is σ = 68943362112. Its totient is φ = 22991627736.

The previous prime is 40235353637. The next prime is 40235353661. The reversal of 40235353641 is 14635353204.

40235353641 is a `hidden beast` number, since 4 + 0 + 2 + 3 + 5 + 3 + 5 + 3 + 641 = 666.

40235353641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40235353641 - 2² = 40235353637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40235353596 and 40235353605.

It is not an unprimeable number, because it can be changed into a prime (40235353661) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3937221 + ... + 3947426.

Almost surely, 2^40235353641 is an apocalyptic number.

It is an amenable number.

40235353641 is a deficient number, since it is larger than the sum of its proper divisors (28708008471).

40235353641 is an frugal number, since it uses more digits than its factorization.

40235353641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7884672 (or 7884657 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 40235353641 in words is "forty billion, two hundred thirty-five million, three hundred fifty-three thousand, six hundred forty-one".