40500023 has 4 divisors (see below), whose sum is σ = 41441928. Its totient is φ = 39558120.

The previous prime is 40500011. The next prime is 40500049. The reversal of 40500023 is 32000504.

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 40500023 - 2¹⁰ = 40498999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40499980 and 40500007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40502023) 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 3 ways as a sum of consecutive naturals, for example, 470888 + ... + 470973.

It is an arithmetic number, because the mean of its divisors is an integer number (10360482).

Almost surely, 2^40500023 is an apocalyptic number.

40500023 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

40500023 is a deficient number, since it is larger than the sum of its proper divisors (941905).

40500023 is an equidigital number, since it uses as much as digits as its factorization.

40500023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941904.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 40500023 is about 6363.9628377293. The cubic root of 40500023 is about 343.4143377745.

Adding to 40500023 its reverse (32000504), we get a palindrome (72500527).

The spelling of 40500023 in words is "forty million, five hundred thousand, twenty-three".