440404234 has 4 divisors (see below), whose sum is σ = 660606354. Its totient is φ = 220202116.

The previous prime is 440404231. The next prime is 440404243. The reversal of 440404234 is 432404044.

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

It can be written as a sum of positive squares in only one way, i.e., 391446225 + 48958009 = 19785^2 + 6997^2 .

It is a junction number, because it is equal to n+sod(n) for n = 440404199 and 440404208.

It is not an unprimeable number, because it can be changed into a prime (440404231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110101057 + ... + 110101060.

Almost surely, 2^440404234 is an apocalyptic number.

440404234 is a deficient number, since it is larger than the sum of its proper divisors (220202120).

440404234 is a wasteful number, since it uses less digits than its factorization.

440404234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220202119.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 440404234 is about 20985.8103012488. The cubic root of 440404234 is about 760.8233424782.

Adding to 440404234 its reverse (432404044), we get a palindrome (872808278).

The spelling of 440404234 in words is "four hundred forty million, four hundred four thousand, two hundred thirty-four".