340434520 has 64 divisors (see below), whose sum is σ = 813330720. Its totient is φ = 127801344.

The previous prime is 340434511. The next prime is 340434527. The reversal of 340434520 is 25434043.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340434527) 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, 464074 + ... + 464806.

Almost surely, 2^340434520 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 340434520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406665360).

340434520 is an abundant number, since it is smaller than the sum of its proper divisors (472896200).

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

340434520 is a wasteful number, since it uses less digits than its factorization.

340434520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444 (or 1440 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 340434520 is about 18450.8677302722. The cubic root of 340434520 is about 698.2504061842.

Adding to 340434520 its reverse (25434043), we get a palindrome (365868563).

The spelling of 340434520 in words is "three hundred forty million, four hundred thirty-four thousand, five hundred twenty".