342736 has 20 divisors (see below), whose sum is σ = 686464. Its totient is φ = 165600.

The previous prime is 342733. The next prime is 342757. The reversal of 342736 is 637243.

342736 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 342736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151 + ... + 841.

2³⁴²⁷³⁶ 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 342736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343232).

342736 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

342736 is a wasteful number, since it uses less digits than its factorization.

342736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 724 counting only the distinct ones).

The product of its digits is 3024, while the sum is 25.

The square root of 342736 is about 585.4365892221. The cubic root of 342736 is about 69.9820362068.

Adding to 342736 its reverse (637243), we get a palindrome (979979).

The spelling of 342736 in words is "three hundred forty-two thousand, seven hundred thirty-six".