40729089366 has 48 divisors (see below), whose sum is σ = 102273470208. Its totient is φ = 11472980400.

The previous prime is 40729089283. The next prime is 40729089367. The reversal of 40729089366 is 66398092704.

It is a happy number.

40729089366 is a `hidden beast` number, since 407 + 2 + 90 + 8 + 93 + 66 = 666.

It is a super-2 number, since 2×40729089366² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40729089367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2267440 + ... + 2285331.

It is an arithmetic number, because the mean of its divisors is an integer number (2130697296).

Almost surely, 2^40729089366 is an apocalyptic number.

40729089366 is an abundant number, since it is smaller than the sum of its proper divisors (61544380842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40729089366 is a wasteful number, since it uses less digits than its factorization.

40729089366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4552857 (or 4552854 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 40729089366 in words is "forty billion, seven hundred twenty-nine million, eighty-nine thousand, three hundred sixty-six".