342621100 has 54 divisors (see below), whose sum is σ = 753636660. Its totient is φ = 135195840.

The previous prime is 342621089. The next prime is 342621101. The reversal of 342621100 is 1126243.

It is not an unprimeable number, because it can be changed into a prime (342621101) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2182222 + ... + 2182378.

Almost surely, 2^342621100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 342621100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376818330).

342621100 is an abundant number, since it is smaller than the sum of its proper divisors (411015560).

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

342621100 is a wasteful number, since it uses less digits than its factorization.

342621100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 342621100 is about 18510.0270124060. The cubic root of 342621100 is about 699.7421499287.

Adding to 342621100 its reverse (1126243), we get a palindrome (343747343).

The spelling of 342621100 in words is "three hundred forty-two million, six hundred twenty-one thousand, one hundred".