40230023 has 4 divisors (see below), whose sum is σ = 40242720. Its totient is φ = 40217328.

The previous prime is 40229963. The next prime is 40230031. The reversal of 40230023 is 32003204.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40230023 - 2¹⁰ = 40228999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40230053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2786 + ... + 9392.

It is an arithmetic number, because the mean of its divisors is an integer number (10060680).

Almost surely, 2^40230023 is an apocalyptic number.

40230023 is a deficient number, since it is larger than the sum of its proper divisors (12697).

40230023 is an equidigital number, since it uses as much as digits as its factorization.

40230023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12696.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 40230023 is about 6342.7141666640. The cubic root of 40230023 is about 342.6494930546.

Adding to 40230023 its reverse (32003204), we get a palindrome (72233227).

The spelling of 40230023 in words is "forty million, two hundred thirty thousand, twenty-three".