40642895 has 4 divisors (see below), whose sum is σ = 48771480. Its totient is φ = 32514312.

The previous prime is 40642883. The next prime is 40642933. The reversal of 40642895 is 59824604.

40642895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40642895 - 2¹⁰ = 40641871 is a prime.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4064285 + ... + 4064294.

It is an arithmetic number, because the mean of its divisors is an integer number (12192870).

Almost surely, 2^40642895 is an apocalyptic number.

40642895 is a deficient number, since it is larger than the sum of its proper divisors (8128585).

40642895 is an equidigital number, since it uses as much as digits as its factorization.

40642895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8128584.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 40642895 is about 6375.1780367296. The cubic root of 40642895 is about 343.8176849639.

The spelling of 40642895 in words is "forty million, six hundred forty-two thousand, eight hundred ninety-five".