434638619 has 4 divisors (see below), whose sum is σ = 434704200. Its totient is φ = 434573040.

The previous prime is 434638591. The next prime is 434638621. The reversal of 434638619 is 916836434.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 434638619 - 2²⁴ = 417861403 is a prime.

It is a super-2 number, since 2×434638619² = 377821458252454322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 434638619.

It is not an unprimeable number, because it can be changed into a prime (434638639) 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, 21569 + ... + 36530.

It is an arithmetic number, because the mean of its divisors is an integer number (108676050).

Almost surely, 2^434638619 is an apocalyptic number.

434638619 is a deficient number, since it is larger than the sum of its proper divisors (65581).

434638619 is an equidigital number, since it uses as much as digits as its factorization.

434638619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65580.

The product of its digits is 373248, while the sum is 44.

The square root of 434638619 is about 20847.9883681856. The cubic root of 434638619 is about 757.4886049399.

The spelling of 434638619 in words is "four hundred thirty-four million, six hundred thirty-eight thousand, six hundred nineteen".