40108005 has 48 divisors (see below), whose sum is σ = 80056704. Its totient is φ = 18195840.

The previous prime is 40108001. The next prime is 40108027. The reversal of 40108005 is 50080104.

It is not a de Polignac number, because 40108005 - 2² = 40108001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40108001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49050 + ... + 49860.

It is an arithmetic number, because the mean of its divisors is an integer number (1667848).

Almost surely, 2^40108005 is an apocalyptic number.

40108005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40108005 is a deficient number, since it is larger than the sum of its proper divisors (39948699).

40108005 is a wasteful number, since it uses less digits than its factorization.

40108005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 40108005 is about 6333.0881092876. The cubic root of 40108005 is about 342.3027226286.

Adding to 40108005 its reverse (50080104), we get a palindrome (90188109).

The spelling of 40108005 in words is "forty million, one hundred eight thousand, five".