40000304023 has 4 divisors (see below), whose sum is σ = 40000985440. Its totient is φ = 39999622608.

The previous prime is 40000303991. The next prime is 40000304039. The reversal of 40000304023 is 32040300004.

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 40000304023 - 2⁵ = 40000303991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40000303988 and 40000304006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40000374023) 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, 243390 + ... + 373147.

It is an arithmetic number, because the mean of its divisors is an integer number (10000246360).

Almost surely, 2^40000304023 is an apocalyptic number.

40000304023 is a deficient number, since it is larger than the sum of its proper divisors (681417).

40000304023 is an equidigital number, since it uses as much as digits as its factorization.

40000304023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681416.

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 40000304023 its reverse (32040300004), we get a palindrome (72040604027).

The spelling of 40000304023 in words is "forty billion, three hundred four thousand, twenty-three".