434020240 has 40 divisors (see below), whose sum is σ = 1009988928. Its totient is φ = 173454720.

The previous prime is 434020229. The next prime is 434020241. The reversal of 434020240 is 42020434.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (434020241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144999 + ... + 147961.

Almost surely, 2^434020240 is an apocalyptic number.

434020240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

434020240 is an abundant number, since it is smaller than the sum of its proper divisors (575968688).

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

434020240 is a wasteful number, since it uses less digits than its factorization.

434020240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4807 (or 4801 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 434020240 is about 20833.1524258812. The cubic root of 434020240 is about 757.1291972650.

Adding to 434020240 its reverse (42020434), we get a palindrome (476040674).

The spelling of 434020240 in words is "four hundred thirty-four million, twenty thousand, two hundred forty".