434643849 has 24 divisors (see below), whose sum is σ = 639641600. Its totient is φ = 284329440.

The previous prime is 434643821. The next prime is 434643863. The reversal of 434643849 is 948346434.

It is a happy number.

It is not a de Polignac number, because 434643849 - 2¹² = 434639753 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434643749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 339192 + ... + 340470.

Almost surely, 2^434643849 is an apocalyptic number.

It is an amenable number.

434643849 is a deficient number, since it is larger than the sum of its proper divisors (204997751).

434643849 is a wasteful number, since it uses less digits than its factorization.

434643849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965 (or 1962 counting only the distinct ones).

The product of its digits is 995328, while the sum is 45.

The square root of 434643849 is about 20848.1137995743. The cubic root of 434643849 is about 757.4916432108.

The spelling of 434643849 in words is "four hundred thirty-four million, six hundred forty-three thousand, eight hundred forty-nine".