220429 has 8 divisors (see below), whose sum is σ = 249120. Its totient is φ = 193200.

The previous prime is 220421. The next prime is 220447. The reversal of 220429 is 924022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 220429 - 2³ = 220421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220421) 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, 27 + ... + 664.

It is an arithmetic number, because the mean of its divisors is an integer number (31140).

2²²⁰⁴²⁹ is an apocalyptic number.

220429 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

220429 is a deficient number, since it is larger than the sum of its proper divisors (28691).

220429 is a wasteful number, since it uses less digits than its factorization.

220429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 220429 is about 469.4986687947. The cubic root of 220429 is about 60.4073211598.

The spelling of 220429 in words is "two hundred twenty thousand, four hundred twenty-nine".