234448409 has 4 divisors (see below), whose sum is σ = 252482916. Its totient is φ = 216413904.

The previous prime is 234448399. The next prime is 234448421. The reversal of 234448409 is 904844432.

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 89775625 + 144672784 = 9475^2 + 12028^2 .

It is a cyclic number.

It is not a de Polignac number, because 234448409 - 2⁴ = 234448393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234448439) 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, 9017234 + ... + 9017259.

It is an arithmetic number, because the mean of its divisors is an integer number (63120729).

Almost surely, 2^234448409 is an apocalyptic number.

It is an amenable number.

234448409 is a deficient number, since it is larger than the sum of its proper divisors (18034507).

234448409 is a wasteful number, since it uses less digits than its factorization.

234448409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18034506.

The product of its (nonzero) digits is 110592, while the sum is 38.

The square root of 234448409 is about 15311.7082325912. The cubic root of 234448409 is about 616.6173824098.

The spelling of 234448409 in words is "two hundred thirty-four million, four hundred forty-eight thousand, four hundred nine".