40196845 has 8 divisors (see below), whose sum is σ = 51946776. Its totient is φ = 29683776.

The previous prime is 40196833. The next prime is 40196861. The reversal of 40196845 is 54869104.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6487209 + 33709636 = 2547^2 + 5806^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40196845 - 2⁹ = 40196333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309142 + ... + 309271.

It is an arithmetic number, because the mean of its divisors is an integer number (6493347).

Almost surely, 2^40196845 is an apocalyptic number.

It is an amenable number.

40196845 is a deficient number, since it is larger than the sum of its proper divisors (11749931).

40196845 is a wasteful number, since it uses less digits than its factorization.

40196845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618431.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 40196845 is about 6340.0981853596. The cubic root of 40196845 is about 342.5552719508. Note that the first 3 decimals are identical.

It can be divided in two parts, 40196 and 845, that added together give a triangular number (41041 = T₂₈₆).

The spelling of 40196845 in words is "forty million, one hundred ninety-six thousand, eight hundred forty-five".