340145520 has 480 divisors, whose sum is σ = 1346538816. Its totient is φ = 70287360.

The previous prime is 340145483. The next prime is 340145549. The reversal of 340145520 is 25541043.

340145520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6417814 + ... + 6417866.

Almost surely, 2^340145520 is an apocalyptic number.

340145520 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 340145520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (673269408).

340145520 is an abundant number, since it is smaller than the sum of its proper divisors (1006393296).

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

340145520 is a wasteful number, since it uses less digits than its factorization.

340145520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 340145520 is about 18443.0344574856. The cubic root of 340145520 is about 698.0527651455.

Adding to 340145520 its reverse (25541043), we get a palindrome (365686563).

The spelling of 340145520 in words is "three hundred forty million, one hundred forty-five thousand, five hundred twenty".