342630 has 56 divisors (see below), whose sum is σ = 944352. Its totient is φ = 89424.

The previous prime is 342607. The next prime is 342647. The reversal of 342630 is 36243.

342630 is a `hidden beast` number, since 34 + 2 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 342630.

It is an unprimeable number.

342630 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 7267 + ... + 7313.

2³⁴²⁶³⁰ is an apocalyptic number.

342630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 342630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472176).

342630 is an abundant number, since it is smaller than the sum of its proper divisors (601722).

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

342630 is an equidigital number, since it uses as much as digits as its factorization.

342630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 342630 is about 585.3460514943. The cubic root of 342630 is about 69.9748208761.

Adding to 342630 its reverse (36243), we get a palindrome (378873).

The spelling of 342630 in words is "three hundred forty-two thousand, six hundred thirty".