40106015 has 16 divisors (see below), whose sum is σ = 49031136. Its totient is φ = 31488000.

The previous prime is 40105991. The next prime is 40106021. The reversal of 40106015 is 51060104.

It is a happy number.

It is not a de Polignac number, because 40106015 - 2¹⁸ = 39843871 is a prime.

It is a Duffinian number.

40106015 is a modest number, since divided by 6015 gives 4010 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 40105984 and 40106002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99815 + ... + 100215.

It is an arithmetic number, because the mean of its divisors is an integer number (3064446).

Almost surely, 2^40106015 is an apocalyptic number.

40106015 is a deficient number, since it is larger than the sum of its proper divisors (8925121).

40106015 is a wasteful number, since it uses less digits than its factorization.

40106015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 40106015 is about 6332.9309959923. The cubic root of 40106015 is about 342.2970613009.

Adding to 40106015 its reverse (51060104), we get a palindrome (91166119).

The spelling of 40106015 in words is "forty million, one hundred six thousand, fifteen".