40111345 has 8 divisors (see below), whose sum is σ = 48306600. Its totient is φ = 31973760.

The previous prime is 40111339. The next prime is 40111361. The reversal of 40111345 is 54311104.

It can be written as a sum of positive squares in 4 ways, for example, as 2313441 + 37797904 = 1521^2 + 6148^2 .

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

It is not a de Polignac number, because 40111345 - 2¹¹ = 40109297 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12870 + ... + 15679.

It is an arithmetic number, because the mean of its divisors is an integer number (6038325).

Almost surely, 2^40111345 is an apocalyptic number.

It is an amenable number.

40111345 is a deficient number, since it is larger than the sum of its proper divisors (8195255).

40111345 is a wasteful number, since it uses less digits than its factorization.

40111345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28835.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 40111345 is about 6333.3517982187. The cubic root of 40111345 is about 342.3122241347.

Adding to 40111345 its reverse (54311104), we get a palindrome (94422449).

It can be divided in two parts, 4011 and 1345, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 40111345 in words is "forty million, one hundred eleven thousand, three hundred forty-five".