40005361 has 8 divisors (see below), whose sum is σ = 43689024. Its totient is φ = 36329520.

The previous prime is 40005347. The next prime is 40005367. The reversal of 40005361 is 16350004.

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 40005361 - 2¹³ = 39997169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40005367) 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, 15795 + ... + 18151.

It is an arithmetic number, because the mean of its divisors is an integer number (5461128).

Almost surely, 2^40005361 is an apocalyptic number.

It is an amenable number.

40005361 is a deficient number, since it is larger than the sum of its proper divisors (3683663).

40005361 is a wasteful number, since it uses less digits than its factorization.

40005361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3911.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 40005361 is about 6324.9791304004. The cubic root of 40005361 is about 342.0104672879.

Adding to 40005361 its reverse (16350004), we get a palindrome (56355365).

The spelling of 40005361 in words is "forty million, five thousand, three hundred sixty-one".