40164015 has 16 divisors (see below), whose sum is σ = 64660608. Its totient is φ = 21288096.

The previous prime is 40163999. The next prime is 40164017. The reversal of 40164015 is 51046104.

It is not a de Polignac number, because 40164015 - 2⁴ = 40163999 is a prime.

It is a super-2 number, since 2×40164015² = 3226296201840450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40163982 and 40164000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40164017) 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, 5769 + ... + 10658.

It is an arithmetic number, because the mean of its divisors is an integer number (4041288).

Almost surely, 2^40164015 is an apocalyptic number.

40164015 is a deficient number, since it is larger than the sum of its proper divisors (24496593).

40164015 is a wasteful number, since it uses less digits than its factorization.

40164015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16598.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 40164015 is about 6337.5085798758. The cubic root of 40164015 is about 342.4619880737.

The spelling of 40164015 in words is "forty million, one hundred sixty-four thousand, fifteen".