40118001 has 16 divisors (see below), whose sum is σ = 66690048. Its totient is φ = 20840400.

The previous prime is 40117981. The next prime is 40118021. The reversal of 40118001 is 10081104.

It is an interprime number because it is at equal distance from previous prime (40117981) and next prime (40118021).

It is not a de Polignac number, because 40118001 - 2¹⁰ = 40116977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40118021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86605 + ... + 87066.

It is an arithmetic number, because the mean of its divisors is an integer number (4168128).

Almost surely, 2^40118001 is an apocalyptic number.

It is an amenable number.

40118001 is a deficient number, since it is larger than the sum of its proper divisors (26572047).

40118001 is a wasteful number, since it uses less digits than its factorization.

40118001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173692.

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

The square root of 40118001 is about 6333.8772485737. The cubic root of 40118001 is about 342.3311572998.

Adding to 40118001 its reverse (10081104), we get a palindrome (50199105).

The spelling of 40118001 in words is "forty million, one hundred eighteen thousand, one".