429638 has 16 divisors (see below), whose sum is σ = 717120. Its totient is φ = 191400.

The previous prime is 429631. The next prime is 429643. The reversal of 429638 is 836924.

429638 is nontrivially palindromic in base 15.

It is a super-2 number, since 2×429638² = 369177622088, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 429638.

It is not an unprimeable number, because it can be changed into a prime (429631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1133 + ... + 1463.

It is an arithmetic number, because the mean of its divisors is an integer number (44820).

2⁴²⁹⁶³⁸ is an apocalyptic number.

429638 is a deficient number, since it is larger than the sum of its proper divisors (287482).

429638 is a wasteful number, since it uses less digits than its factorization.

429638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403.

The product of its digits is 10368, while the sum is 32.

The square root of 429638 is about 655.4677719003. The cubic root of 429638 is about 75.4572364295.

It can be divided in two parts, 4296 and 38, that added together give a palindrome (4334).

The spelling of 429638 in words is "four hundred twenty-nine thousand, six hundred thirty-eight".