434781409 has 8 divisors (see below), whose sum is σ = 461753568. Its totient is φ = 407964480.

The previous prime is 434781401. The next prime is 434781439. The reversal of 434781409 is 904187434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 434781409 - 2³ = 434781401 is a prime.

It is a super-2 number, since 2×434781409² = 378069747224050562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434781401) 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, 33007 + ... + 44260.

It is an arithmetic number, because the mean of its divisors is an integer number (57719196).

Almost surely, 2^434781409 is an apocalyptic number.

It is an amenable number.

434781409 is a deficient number, since it is larger than the sum of its proper divisors (26972159).

434781409 is a wasteful number, since it uses less digits than its factorization.

434781409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77615.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 434781409 is about 20851.4126379965. The cubic root of 434781409 is about 757.5715473743.

The spelling of 434781409 in words is "four hundred thirty-four million, seven hundred eighty-one thousand, four hundred nine".