340005434520 has 64 divisors (see below), whose sum is σ = 1020666147840. Its totient is φ = 90610352000.

The previous prime is 340005434519. The next prime is 340005434521. The reversal of 340005434520 is 25434500043.

340005434520 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (340005434519) and next prime (340005434521).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340005434521) 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, 713256 + ... + 1090295.

It is an arithmetic number, because the mean of its divisors is an integer number (15947908560).

Almost surely, 2^340005434520 is an apocalyptic number.

340005434520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340005434520 is an abundant number, since it is smaller than the sum of its proper divisors (680660713320).

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

340005434520 is a wasteful number, since it uses less digits than its factorization.

340005434520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805136 (or 1805132 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 340005434520 its reverse (25434500043), we get a palindrome (365439934563).

The spelling of 340005434520 in words is "three hundred forty billion, five million, four hundred thirty-four thousand, five hundred twenty".