429990 has 32 divisors (see below), whose sum is σ = 1126656. Its totient is φ = 104160.

The previous prime is 429973. The next prime is 429991. The reversal of 429990 is 99924.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429991) 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 15 ways as a sum of consecutive naturals, for example, 322 + ... + 981.

It is an arithmetic number, because the mean of its divisors is an integer number (35208).

2⁴²⁹⁹⁹⁰ is an apocalyptic number.

429990 is an abundant number, since it is smaller than the sum of its proper divisors (696666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

429990 is a wasteful number, since it uses less digits than its factorization.

429990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 429990 is about 655.7362274574. The cubic root of 429990 is about 75.4778380343.

The spelling of 429990 in words is "four hundred twenty-nine thousand, nine hundred ninety".