409420529 has 12 divisors (see below), whose sum is σ = 484340400. Its totient is φ = 344981448.

The previous prime is 409420523. The next prime is 409420541. The reversal of 409420529 is 925024904.

It is not a de Polignac number, because 409420529 - 2⁴ = 409420513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409420523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67919 + ... + 73700.

It is an arithmetic number, because the mean of its divisors is an integer number (40361700).

Almost surely, 2^409420529 is an apocalyptic number.

409420529 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

409420529 is a deficient number, since it is larger than the sum of its proper divisors (74919871).

409420529 is a wasteful number, since it uses less digits than its factorization.

409420529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141692 (or 141685 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 409420529 is about 20234.1426554228. The cubic root of 409420529 is about 742.5457300074.

The spelling of 409420529 in words is "four hundred nine million, four hundred twenty thousand, five hundred twenty-nine".