230040409 has 2 divisors, whose sum is σ = 230040410. Its totient is φ = 230040408.

The previous prime is 230040397. The next prime is 230040427. The reversal of 230040409 is 904040032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194518809 + 35521600 = 13947^2 + 5960^2 .

It is a cyclic number.

It is not a de Polignac number, because 230040409 - 2⁷ = 230040281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230040409.

It is not a weakly prime, because it can be changed into another prime (230040439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115020204 + 115020205.

It is an arithmetic number, because the mean of its divisors is an integer number (115020205).

Almost surely, 2^230040409 is an apocalyptic number.

It is an amenable number.

230040409 is a deficient number, since it is larger than the sum of its proper divisors (1).

230040409 is an equidigital number, since it uses as much as digits as its factorization.

230040409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 230040409 is about 15167.0830748697. The cubic root of 230040409 is about 612.7284470071.

The spelling of 230040409 in words is "two hundred thirty million, forty thousand, four hundred nine".