434213409 has 16 divisors (see below), whose sum is σ = 664005632. Its totient is φ = 247241808.

The previous prime is 434213407. The next prime is 434213449. The reversal of 434213409 is 904312434.

It is not a de Polignac number, because 434213409 - 2¹ = 434213407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434213407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30589 + ... + 42474.

It is an arithmetic number, because the mean of its divisors is an integer number (41500352).

Almost surely, 2^434213409 is an apocalyptic number.

It is an amenable number.

434213409 is a deficient number, since it is larger than the sum of its proper divisors (229792223).

434213409 is a wasteful number, since it uses less digits than its factorization.

434213409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73356.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 434213409 is about 20837.7880064080. The cubic root of 434213409 is about 757.2415055432.

The spelling of 434213409 in words is "four hundred thirty-four million, two hundred thirteen thousand, four hundred nine".