40172896 has 24 divisors (see below), whose sum is σ = 79231824. Its totient is φ = 20050560.

The previous prime is 40172893. The next prime is 40172903. The reversal of 40172896 is 69827104.

40172896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40172896² = 3227723146053632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40172893) 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 3 ways as a sum of consecutive naturals, for example, 33426 + ... + 34606.

It is an arithmetic number, because the mean of its divisors is an integer number (3301326).

Almost surely, 2^40172896 is an apocalyptic number.

It is an amenable number.

40172896 is a deficient number, since it is larger than the sum of its proper divisors (39058928).

40172896 is a wasteful number, since it uses less digits than its factorization.

40172896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254 (or 2246 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 40172896 is about 6338.2092108103. The cubic root of 40172896 is about 342.4872277547.

The spelling of 40172896 in words is "forty million, one hundred seventy-two thousand, eight hundred ninety-six".