429040 has 40 divisors (see below), whose sum is σ = 1035648. Its totient is φ = 165120.

The previous prime is 429017. The next prime is 429043. The reversal of 429040 is 40924.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 428999 and 429017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429043) 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, 2394 + ... + 2566.

2⁴²⁹⁰⁴⁰ is an apocalyptic number.

429040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 429040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517824).

429040 is an abundant number, since it is smaller than the sum of its proper divisors (606608).

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

429040 is a wasteful number, since it uses less digits than its factorization.

429040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 211 counting only the distinct ones).

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

The square root of 429040 is about 655.0114502816. The cubic root of 429040 is about 75.4222113007.

Adding to 429040 its reverse (40924), we get a palindrome (469964).

The spelling of 429040 in words is "four hundred twenty-nine thousand, forty".