40354165 has 8 divisors (see below), whose sum is σ = 48459960. Its totient is φ = 32260032.

The previous prime is 40354163. The next prime is 40354183. The reversal of 40354165 is 56145304.

It can be written as a sum of positive squares in 4 ways, for example, as 1304164 + 39050001 = 1142^2 + 6249^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40354165 - 2¹ = 40354163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40354163) 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, 9567 + ... + 13123.

It is an arithmetic number, because the mean of its divisors is an integer number (6057495).

Almost surely, 2^40354165 is an apocalyptic number.

It is an amenable number.

40354165 is a deficient number, since it is larger than the sum of its proper divisors (8105795).

40354165 is a wasteful number, since it uses less digits than its factorization.

40354165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5831.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 40354165 is about 6352.4928177842. The cubic root of 40354165 is about 343.0015809666.

Adding to 40354165 its reverse (56145304), we get a palindrome (96499469).

The spelling of 40354165 in words is "forty million, three hundred fifty-four thousand, one hundred sixty-five".