40195623 has 16 divisors (see below), whose sum is σ = 59580416. Its totient is φ = 23937120.

The previous prime is 40195619. The next prime is 40195643. The reversal of 40195623 is 32659104.

40195623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40195623 - 2² = 40195619 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40195613) 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 15 ways as a sum of consecutive naturals, for example, 15415 + ... + 17832.

It is an arithmetic number, because the mean of its divisors is an integer number (3723776).

Almost surely, 2^40195623 is an apocalyptic number.

40195623 is a deficient number, since it is larger than the sum of its proper divisors (19384793).

40195623 is a wasteful number, since it uses less digits than its factorization.

40195623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33294.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 40195623 is about 6340.0018138799. The cubic root of 40195623 is about 342.5518006437.

The spelling of 40195623 in words is "forty million, one hundred ninety-five thousand, six hundred twenty-three".