440429 has 4 divisors (see below), whose sum is σ = 480480. Its totient is φ = 400380.

The previous prime is 440399. The next prime is 440431. The reversal of 440429 is 924044.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 440429 - 2¹⁶ = 374893 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20009 + ... + 20030.

It is an arithmetic number, because the mean of its divisors is an integer number (120120).

2⁴⁴⁰⁴²⁹ is an apocalyptic number.

It is an amenable number.

440429 is a deficient number, since it is larger than the sum of its proper divisors (40051).

440429 is a wasteful number, since it uses less digits than its factorization.

440429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40050.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 440429 is about 663.6482502049. The cubic root of 440429 is about 76.0837603768.

The spelling of 440429 in words is "four hundred forty thousand, four hundred twenty-nine".