440104431 has 16 divisors (see below), whose sum is σ = 632711520. Its totient is φ = 270504960.

The previous prime is 440104409. The next prime is 440104451. The reversal of 440104431 is 134401044.

It is not a de Polignac number, because 440104431 - 2⁶ = 440104367 is a prime.

It is a super-2 number, since 2×440104431² = 387383820371667522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 440104398 and 440104407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440104451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27955 + ... + 40763.

It is an arithmetic number, because the mean of its divisors is an integer number (39544470).

Almost surely, 2^440104431 is an apocalyptic number.

440104431 is a deficient number, since it is larger than the sum of its proper divisors (192607089).

440104431 is a wasteful number, since it uses less digits than its factorization.

440104431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13706.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 440104431 is about 20978.6660920088. Note that the first 3 decimals coincide. The cubic root of 440104431 is about 760.6506610481.

Adding to 440104431 its reverse (134401044), we get a palindrome (574505475).

The spelling of 440104431 in words is "four hundred forty million, one hundred four thousand, four hundred thirty-one".