434220240 has 80 divisors (see below), whose sum is σ = 1348270848. Its totient is φ = 115603968.

The previous prime is 434220229. The next prime is 434220247. The reversal of 434220240 is 42022434.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434220247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209449 + ... + 211511.

Almost surely, 2^434220240 is an apocalyptic number.

434220240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

434220240 is an abundant number, since it is smaller than the sum of its proper divisors (914050608).

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

434220240 is a wasteful number, since it uses less digits than its factorization.

434220240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956 (or 2950 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 434220240 is about 20837.9519147156. The cubic root of 434220240 is about 757.2454764704.

Adding to 434220240 its reverse (42022434), we get a palindrome (476242674).

The spelling of 434220240 in words is "four hundred thirty-four million, two hundred twenty thousand, two hundred forty".