429890 has 8 divisors (see below), whose sum is σ = 773820. Its totient is φ = 171952.

The previous prime is 429889. The next prime is 429899. The reversal of 429890 is 98924.

It can be written as a sum of positive squares in 2 ways, for example, as 426409 + 3481 = 653^2 + 59^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 429890.

It is not an unprimeable number, because it can be changed into a prime (429899) 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, 21485 + ... + 21504.

2⁴²⁹⁸⁹⁰ is an apocalyptic number.

429890 is a deficient number, since it is larger than the sum of its proper divisors (343930).

429890 is a wasteful number, since it uses less digits than its factorization.

429890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42996.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 429890 is about 655.6599728518. The cubic root of 429890 is about 75.4719864494.

The spelling of 429890 in words is "four hundred twenty-nine thousand, eight hundred ninety".