434405500 has 48 divisors (see below), whose sum is σ = 981489600. Its totient is φ = 167764800.

The previous prime is 434405473. The next prime is 434405509. The reversal of 434405500 is 5504434.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434405509) 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 15 ways as a sum of consecutive naturals, for example, 480 + ... + 29479.

It is an arithmetic number, because the mean of its divisors is an integer number (20447700).

Almost surely, 2^434405500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 434405500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490744800).

434405500 is an abundant number, since it is smaller than the sum of its proper divisors (547084100).

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

434405500 is a wasteful number, since it uses less digits than its factorization.

434405500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30007 (or 29995 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 434405500 is about 20842.3966951980. The cubic root of 434405500 is about 757.3531540478.

Adding to 434405500 its reverse (5504434), we get a palindrome (439909934).

The spelling of 434405500 in words is "four hundred thirty-four million, four hundred five thousand, five hundred".