40535613 has 16 divisors (see below), whose sum is σ = 60158400. Its totient is φ = 26976240.

The previous prime is 40535587. The next prime is 40535629. The reversal of 40535613 is 31653504.

40535613 is a `hidden beast` number, since 40 + 5 + 3 + 5 + 613 = 666.

40535613 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 40535613 - 2⁶ = 40535549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40535653) 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 15 ways as a sum of consecutive naturals, for example, 21478 + ... + 23288.

It is an arithmetic number, because the mean of its divisors is an integer number (3759900).

Almost surely, 2^40535613 is an apocalyptic number.

It is an amenable number.

40535613 is a deficient number, since it is larger than the sum of its proper divisors (19622787).

40535613 is a wasteful number, since it uses less digits than its factorization.

40535613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649 (or 2643 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 40535613 is about 6366.7584373840. The cubic root of 40535613 is about 343.5149018153.

The spelling of 40535613 in words is "forty million, five hundred thirty-five thousand, six hundred thirteen".