40195973 has 16 divisors (see below), whose sum is σ = 44706816. Its totient is φ = 35946240.

The previous prime is 40195957. The next prime is 40195979. The reversal of 40195973 is 37959104.

It is a happy number.

40195973 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 40195973 - 2⁴ = 40195957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40195979) 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, 86963 + ... + 87423.

It is an arithmetic number, because the mean of its divisors is an integer number (2794176).

Almost surely, 2^40195973 is an apocalyptic number.

It is an amenable number.

40195973 is a deficient number, since it is larger than the sum of its proper divisors (4510843).

40195973 is a wasteful number, since it uses less digits than its factorization.

40195973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 40195973 is about 6340.0294163355. The cubic root of 40195973 is about 342.5527948877.

The spelling of 40195973 in words is "forty million, one hundred ninety-five thousand, nine hundred seventy-three".