434440520 has 32 divisors (see below), whose sum is σ = 990888120. Its totient is φ = 171394560.

The previous prime is 434440519. The next prime is 434440549. The reversal of 434440520 is 25044434.

It can be written as a sum of positive squares in 4 ways, for example, as 390536644 + 43903876 = 19762^2 + 6626^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 434440520.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71471 + ... + 77310.

Almost surely, 2^434440520 is an apocalyptic number.

434440520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

434440520 is an abundant number, since it is smaller than the sum of its proper divisors (556447600).

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

434440520 is a wasteful number, since it uses less digits than its factorization.

434440520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148865 (or 148861 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 434440520 is about 20843.2367927824. The cubic root of 434440520 is about 757.3735050753.

Adding to 434440520 its reverse (25044434), we get a palindrome (459484954).

The spelling of 434440520 in words is "four hundred thirty-four million, four hundred forty thousand, five hundred twenty".