40919565 has 8 divisors (see below), whose sum is σ = 65471328. Its totient is φ = 21823760.

The previous prime is 40919491. The next prime is 40919569. The reversal of 40919565 is 56591904.

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

It is not a de Polignac number, because 40919565 - 2⁸ = 40919309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40919569) 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, 1363971 + ... + 1364000.

It is an arithmetic number, because the mean of its divisors is an integer number (8183916).

Almost surely, 2^40919565 is an apocalyptic number.

It is an amenable number.

40919565 is a deficient number, since it is larger than the sum of its proper divisors (24551763).

40919565 is a wasteful number, since it uses less digits than its factorization.

40919565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727979.

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 40919565 is about 6396.8402356163. The cubic root of 40919565 is about 344.5960826337.

The spelling of 40919565 in words is "forty million, nine hundred nineteen thousand, five hundred sixty-five".