40353023 has 4 divisors (see below), whose sum is σ = 40839288. Its totient is φ = 39866760.

The previous prime is 40352993. The next prime is 40353029. The reversal of 40353023 is 32035304.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40353023 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 40352986 and 40353004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40353029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243008 + ... + 243173.

It is an arithmetic number, because the mean of its divisors is an integer number (10209822).

Almost surely, 2^40353023 is an apocalyptic number.

40353023 is a deficient number, since it is larger than the sum of its proper divisors (486265).

40353023 is an equidigital number, since it uses as much as digits as its factorization.

40353023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486264.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 40353023 is about 6352.4029311749. The cubic root of 40353023 is about 342.9983453527.

Adding to 40353023 its reverse (32035304), we get a palindrome (72388327).

The spelling of 40353023 in words is "forty million, three hundred fifty-three thousand, twenty-three".