40016965 has 8 divisors (see below), whose sum is σ = 48222720. Its totient is φ = 31878672.

The previous prime is 40016959. The next prime is 40016971. The reversal of 40016965 is 56961004.

It is an interprime number because it is at equal distance from previous prime (40016959) and next prime (40016971).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40016965 is a prime.

It is a super-2 number, since 2×40016965² = 3202714975622450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 15549 + ... + 17938.

It is an arithmetic number, because the mean of its divisors is an integer number (6027840).

Almost surely, 2^40016965 is an apocalyptic number.

It is an amenable number.

40016965 is a deficient number, since it is larger than the sum of its proper divisors (8205755).

40016965 is a wasteful number, since it uses less digits than its factorization.

40016965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33731.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 40016965 is about 6325.8963791703. The cubic root of 40016965 is about 342.0435320714.

Adding to 40016965 its reverse (56961004), we get a palindrome (96977969).

The spelling of 40016965 in words is "forty million, sixteen thousand, nine hundred sixty-five".