40384969 has 8 divisors (see below), whose sum is σ = 41184000. Its totient is φ = 39589872.

The previous prime is 40384963. The next prime is 40384999. The reversal of 40384969 is 96948304.

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-40384969 is a prime.

It is a super-2 number, since 2×40384969² = 3261891442261922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40384963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27547 + ... + 28975.

It is an arithmetic number, because the mean of its divisors is an integer number (5148000).

Almost surely, 2^40384969 is an apocalyptic number.

It is an amenable number.

40384969 is a deficient number, since it is larger than the sum of its proper divisors (799031).

40384969 is a wasteful number, since it uses less digits than its factorization.

40384969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 40384969 is about 6354.9169152712. The cubic root of 40384969 is about 343.0888345244.

The spelling of 40384969 in words is "forty million, three hundred eighty-four thousand, nine hundred sixty-nine".