40113305 has 8 divisors (see below), whose sum is σ = 48562632. Its totient is φ = 31806208.

The previous prime is 40113299. The next prime is 40113317. The reversal of 40113305 is 50331104.

It can be written as a sum of positive squares in 4 ways, for example, as 3474496 + 36638809 = 1864^2 + 6053^2 .

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 40113305 - 2⁸ = 40113049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34934 + ... + 36063.

It is an arithmetic number, because the mean of its divisors is an integer number (6070329).

Almost surely, 2^40113305 is an apocalyptic number.

It is an amenable number.

40113305 is a deficient number, since it is larger than the sum of its proper divisors (8449327).

40113305 is a wasteful number, since it uses less digits than its factorization.

40113305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71115.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 40113305 is about 6333.5065327195. The cubic root of 40113305 is about 342.3177996232.

Adding to 40113305 its reverse (50331104), we get a palindrome (90444409).

The spelling of 40113305 in words is "forty million, one hundred thirteen thousand, three hundred five".