434381805 has 64 divisors (see below), whose sum is σ = 907280640. Its totient is φ = 194400000.

The previous prime is 434381789. The next prime is 434381809. The reversal of 434381805 is 508183434.

434381805 is a `hidden beast` number, since 43 + 438 + 180 + 5 = 666.

It is not a de Polignac number, because 434381805 - 2⁴ = 434381789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 434381805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434381809) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8055 + ... + 30555.

It is an arithmetic number, because the mean of its divisors is an integer number (14176260).

Almost surely, 2^434381805 is an apocalyptic number.

434381805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

434381805 is an abundant number, since it is smaller than the sum of its proper divisors (472898835).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

434381805 is a wasteful number, since it uses less digits than its factorization.

434381805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22539 (or 22533 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 434381805 is about 20841.8282547381. The cubic root of 434381805 is about 757.3393836503.

The spelling of 434381805 in words is "four hundred thirty-four million, three hundred eighty-one thousand, eight hundred five".