40017029 has 8 divisors (see below), whose sum is σ = 43478232. Its totient is φ = 36610560.

The previous prime is 40017011. The next prime is 40017101. The reversal of 40017029 is 92071004.

It can be written as a sum of positive squares in 4 ways, for example, as 2256004 + 37761025 = 1502^2 + 6145^2 .

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 40017029 - 2⁸ = 40016773 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40016995 and 40017013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40017829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12152 + ... + 15089.

It is an arithmetic number, because the mean of its divisors is an integer number (5434779).

Almost surely, 2^40017029 is an apocalyptic number.

It is an amenable number.

40017029 is a deficient number, since it is larger than the sum of its proper divisors (3461203).

40017029 is a wasteful number, since it uses less digits than its factorization.

40017029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27367.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 40017029 is about 6325.9014377399. The cubic root of 40017029 is about 342.0437144172.

The spelling of 40017029 in words is "forty million, seventeen thousand, twenty-nine".