409329641 has 4 divisors (see below), whose sum is σ = 467805312. Its totient is φ = 350853972.

The previous prime is 409329619. The next prime is 409329659. The reversal of 409329641 is 146923904.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-409329641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 409329595 and 409329604.

It is not an unprimeable number, because it can be changed into a prime (409329941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29237825 + ... + 29237838.

It is an arithmetic number, because the mean of its divisors is an integer number (116951328).

Almost surely, 2^409329641 is an apocalyptic number.

It is an amenable number.

409329641 is a deficient number, since it is larger than the sum of its proper divisors (58475671).

409329641 is an equidigital number, since it uses as much as digits as its factorization.

409329641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58475670.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 409329641 is about 20231.8966238956. The cubic root of 409329641 is about 742.4907795867.

The spelling of 409329641 in words is "four hundred nine million, three hundred twenty-nine thousand, six hundred forty-one".