40901729 has 12 divisors (see below), whose sum is σ = 45704592. Its totient is φ = 36300600.

The previous prime is 40901701. The next prime is 40901771. The reversal of 40901729 is 92710904.

40901729 is nontrivially palindromic in base 5.

It is not a de Polignac number, because 40901729 - 2²⁰ = 39853153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40901695 and 40901704.

It is not an unprimeable number, because it can be changed into a prime (40901789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19334 + ... + 21344.

It is an arithmetic number, because the mean of its divisors is an integer number (3808716).

Almost surely, 2^40901729 is an apocalyptic number.

It is an amenable number.

40901729 is a deficient number, since it is larger than the sum of its proper divisors (4802863).

40901729 is a wasteful number, since it uses less digits than its factorization.

40901729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 40901729 is about 6395.4459578672. The cubic root of 40901729 is about 344.5460079001.

The spelling of 40901729 in words is "forty million, nine hundred one thousand, seven hundred twenty-nine".