40055029 has 8 divisors (see below), whose sum is σ = 47767680. Its totient is φ = 32840016.

The previous prime is 40055017. The next prime is 40055047. The reversal of 40055029 is 92055004.

40055029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40055029 - 2⁷ = 40054901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40054994 and 40055012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40055089) 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 7 ways as a sum of consecutive naturals, for example, 124234 + ... + 124555.

It is an arithmetic number, because the mean of its divisors is an integer number (5970960).

Almost surely, 2^40055029 is an apocalyptic number.

It is an amenable number.

40055029 is a deficient number, since it is larger than the sum of its proper divisors (7712651).

40055029 is a wasteful number, since it uses less digits than its factorization.

40055029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248819.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 40055029 is about 6328.9042495522. The cubic root of 40055029 is about 342.1519479157.

Subtracting from 40055029 its sum of digits (25), we obtain a palindrome (40055004).

The spelling of 40055029 in words is "forty million, fifty-five thousand, twenty-nine".