40940723 has 4 divisors (see below), whose sum is σ = 41459040. Its totient is φ = 40422408.

The previous prime is 40940689. The next prime is 40940729. The reversal of 40940723 is 32704904.

40940723 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.

It is a cyclic number.

It is not a de Polignac number, because 40940723 - 2¹² = 40936627 is a prime.

It is a super-2 number, since 2×40940723² = 3352285599525458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40940729) 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, 259040 + ... + 259197.

It is an arithmetic number, because the mean of its divisors is an integer number (10364760).

Almost surely, 2^40940723 is an apocalyptic number.

40940723 is a deficient number, since it is larger than the sum of its proper divisors (518317).

40940723 is an equidigital number, since it uses as much as digits as its factorization.

40940723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518316.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 40940723 is about 6398.4938071393. The cubic root of 40940723 is about 344.6554650477.

The spelling of 40940723 in words is "forty million, nine hundred forty thousand, seven hundred twenty-three".