40071723 has 8 divisors (see below), whose sum is σ = 54105600. Its totient is φ = 26376168.

The previous prime is 40071701. The next prime is 40071749. The reversal of 40071723 is 32717004.

40071723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40071723 - 2⁸ = 40071467 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40071693 and 40071702.

It is not an unprimeable number, because it can be changed into a prime (40071523) 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 7 ways as a sum of consecutive naturals, for example, 84303 + ... + 84776.

It is an arithmetic number, because the mean of its divisors is an integer number (6763200).

Almost surely, 2^40071723 is an apocalyptic number.

40071723 is a deficient number, since it is larger than the sum of its proper divisors (14033877).

40071723 is a wasteful number, since it uses less digits than its factorization.

40071723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169161.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 40071723 is about 6330.2229818546. Note that the first 3 decimals coincide. The cubic root of 40071723 is about 342.1994749588.

Adding to 40071723 its reverse (32717004), we get a palindrome (72788727).

The spelling of 40071723 in words is "forty million, seventy-one thousand, seven hundred twenty-three".