40724163808 has 96 divisors (see below), whose sum is σ = 83429015040. Its totient is φ = 19553418240.

The previous prime is 40724163803. The next prime is 40724163829. The reversal of 40724163808 is 80836142704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40724163803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39964323 + ... + 39965341.

It is an arithmetic number, because the mean of its divisors is an integer number (869052240).

Almost surely, 2^40724163808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40724163808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41714507520).

40724163808 is an abundant number, since it is smaller than the sum of its proper divisors (42704851232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40724163808 is a wasteful number, since it uses less digits than its factorization.

40724163808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520 (or 1512 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 40724163808 in words is "forty billion, seven hundred twenty-four million, one hundred sixty-three thousand, eight hundred eight".