340535520 has 144 divisors (see below), whose sum is σ = 1251536832. Its totient is φ = 83819520.

The previous prime is 340535509. The next prime is 340535521. The reversal of 340535520 is 25535043.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340535521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9625 + ... + 27815.

It is an arithmetic number, because the mean of its divisors is an integer number (8691228).

Almost surely, 2^340535520 is an apocalyptic number.

340535520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340535520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (625768416).

340535520 is an abundant number, since it is smaller than the sum of its proper divisors (911001312).

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

340535520 is a wasteful number, since it uses less digits than its factorization.

340535520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18225 (or 18214 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 340535520 is about 18453.6045259456. The cubic root of 340535520 is about 698.3194515892.

The spelling of 340535520 in words is "three hundred forty million, five hundred thirty-five thousand, five hundred twenty".