342403220 has 48 divisors (see below), whose sum is σ = 731142720. Its totient is φ = 134674176.

The previous prime is 342403213. The next prime is 342403247. The reversal of 342403220 is 22304243.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 342403192 and 342403201.

It is a congruent number.

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, 519251 + ... + 519909.

It is an arithmetic number, because the mean of its divisors is an integer number (15232140).

Almost surely, 2^342403220 is an apocalyptic number.

It is an amenable number.

342403220 is an abundant number, since it is smaller than the sum of its proper divisors (388739500).

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

342403220 is a wasteful number, since it uses less digits than its factorization.

342403220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064 (or 1062 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 342403220 is about 18504.1406177104. The cubic root of 342403220 is about 699.5937915346.

Adding to 342403220 its reverse (22304243), we get a palindrome (364707463).

The spelling of 342403220 in words is "three hundred forty-two million, four hundred three thousand, two hundred twenty".