342005520 has 80 divisors (see below), whose sum is σ = 1076091840. Its totient is φ = 89836032.

The previous prime is 342005519. The next prime is 342005533. The reversal of 342005520 is 25500243.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5446 + ... + 26714.

It is an arithmetic number, because the mean of its divisors is an integer number (13451148).

Almost surely, 2^342005520 is an apocalyptic number.

342005520 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 342005520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538045920).

342005520 is an abundant number, since it is smaller than the sum of its proper divisors (734086320).

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

342005520 is a wasteful number, since it uses less digits than its factorization.

342005520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21352 (or 21346 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 342005520 is about 18493.3912520122. The cubic root of 342005520 is about 699.3228281162.

Adding to 342005520 its reverse (25500243), we get a palindrome (367505763).

The spelling of 342005520 in words is "three hundred forty-two million, five thousand, five hundred twenty".