40187345 has 8 divisors (see below), whose sum is σ = 52608960. Its totient is φ = 29227120.

The previous prime is 40187341. The next prime is 40187351. The reversal of 40187345 is 54378104.

40187345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40187345 - 2² = 40187341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40187341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365285 + ... + 365394.

It is an arithmetic number, because the mean of its divisors is an integer number (6576120).

Almost surely, 2^40187345 is an apocalyptic number.

It is an amenable number.

40187345 is a deficient number, since it is larger than the sum of its proper divisors (12421615).

40187345 is a wasteful number, since it uses less digits than its factorization.

40187345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730695.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 40187345 is about 6339.3489413346. The cubic root of 40187345 is about 342.5282836678.

The spelling of 40187345 in words is "forty million, one hundred eighty-seven thousand, three hundred forty-five".