40018101 has 8 divisors (see below), whose sum is σ = 53399424. Its totient is φ = 26657760.

The previous prime is 40018093. The next prime is 40018109. The reversal of 40018101 is 10181004.

It is an interprime number because it is at equal distance from previous prime (40018093) and next prime (40018109).

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

It is not a de Polignac number, because 40018101 - 2³ = 40018093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40018109) 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, 61 + ... + 8946.

It is an arithmetic number, because the mean of its divisors is an integer number (6674928).

Almost surely, 2^40018101 is an apocalyptic number.

It is an amenable number.

40018101 is a deficient number, since it is larger than the sum of its proper divisors (13381323).

40018101 is a wasteful number, since it uses less digits than its factorization.

40018101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10491.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 40018101 is about 6325.9861681796. The cubic root of 40018101 is about 342.0467686802.

Adding to 40018101 its reverse (10181004), we get a palindrome (50199105).

The spelling of 40018101 in words is "forty million, eighteen thousand, one hundred one".