342221100 has 144 divisors (see below), whose sum is σ = 1089596928. Its totient is φ = 82402560.

The previous prime is 342221081. The next prime is 342221107. The reversal of 342221100 is 1122243.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 342221100.

It is not an unprimeable number, because it can be changed into a prime (342221107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 182367 + ... + 184233.

Almost surely, 2^342221100 is an apocalyptic number.

342221100 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 342221100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (544798464).

342221100 is an abundant number, since it is smaller than the sum of its proper divisors (747375828).

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

342221100 is a wasteful number, since it uses less digits than its factorization.

342221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944 (or 1937 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 342221100 is about 18499.2189024294. The cubic root of 342221100 is about 699.4697344679.

Adding to 342221100 its reverse (1122243), we get a palindrome (343343343).

The spelling of 342221100 in words is "three hundred forty-two million, two hundred twenty-one thousand, one hundred".