40740823 has 8 divisors (see below), whose sum is σ = 44141328. Its totient is φ = 37451904.

The previous prime is 40740803. The next prime is 40740827. The reversal of 40740823 is 32804704.

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

It is a cyclic number.

It is not a de Polignac number, because 40740823 - 2¹³ = 40732631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40740791 and 40740800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40740827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27136 + ... + 28597.

It is an arithmetic number, because the mean of its divisors is an integer number (5517666).

Almost surely, 2^40740823 is an apocalyptic number.

40740823 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

40740823 is a deficient number, since it is larger than the sum of its proper divisors (3400505).

40740823 is a wasteful number, since it uses less digits than its factorization.

40740823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55793.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 40740823 is about 6382.8538288136. The cubic root of 40740823 is about 344.0936034039.

It can be divided in two parts, 4074082 and 3, that added together give a triangular number (4074085 = T₂₈₅₄).

The spelling of 40740823 in words is "forty million, seven hundred forty thousand, eight hundred twenty-three".