429740 has 12 divisors (see below), whose sum is σ = 902496. Its totient is φ = 171888.

The previous prime is 429733. The next prime is 429773. The reversal of 429740 is 47924.

It is an unprimeable number.

429740 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10724 + ... + 10763.

It is an arithmetic number, because the mean of its divisors is an integer number (75208).

2⁴²⁹⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

429740 is an abundant number, since it is smaller than the sum of its proper divisors (472756).

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

429740 is a wasteful number, since it uses less digits than its factorization.

429740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21496 (or 21494 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 429740 is about 655.5455743120. The cubic root of 429740 is about 75.4632073703.

Subtracting from 429740 its product of nonzero digits (2016), we obtain a palindrome (427724).

The spelling of 429740 in words is "four hundred twenty-nine thousand, seven hundred forty".