40723793 has 4 divisors (see below), whose sum is σ = 44425968. Its totient is φ = 37021620.

The previous prime is 40723741. The next prime is 40723799. The reversal of 40723793 is 39732704.

40723793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40723793 - 2⁶ = 40723729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40723799) 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, 1851071 + ... + 1851092.

It is an arithmetic number, because the mean of its divisors is an integer number (11106492).

Almost surely, 2^40723793 is an apocalyptic number.

It is an amenable number.

40723793 is a deficient number, since it is larger than the sum of its proper divisors (3702175).

40723793 is a wasteful number, since it uses less digits than its factorization.

40723793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702174.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 40723793 is about 6381.5196466046. The cubic root of 40723793 is about 344.0456520673.

The spelling of 40723793 in words is "forty million, seven hundred twenty-three thousand, seven hundred ninety-three".