40230305 has 4 divisors (see below), whose sum is σ = 48276372. Its totient is φ = 32184240.

The previous prime is 40230301. The next prime is 40230329. The reversal of 40230305 is 50303204.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31091776 + 9138529 = 5576^2 + 3023^2 .

It is not a de Polignac number, because 40230305 - 2² = 40230301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40230301) 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, 4023026 + ... + 4023035.

It is an arithmetic number, because the mean of its divisors is an integer number (12069093).

Almost surely, 2^40230305 is an apocalyptic number.

It is an amenable number.

40230305 is a deficient number, since it is larger than the sum of its proper divisors (8046067).

40230305 is an equidigital number, since it uses as much as digits as its factorization.

40230305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8046066.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 40230305 is about 6342.7363968559. The cubic root of 40230305 is about 342.6502936750.

Adding to 40230305 its reverse (50303204), we get a palindrome (90533509).

The spelling of 40230305 in words is "forty million, two hundred thirty thousand, three hundred five".