342644 has 6 divisors (see below), whose sum is σ = 599634. Its totient is φ = 171320.

The previous prime is 342607. The next prime is 342647. The reversal of 342644 is 446243.

It is a happy number.

342644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 211600 + 131044 = 460^2 + 362^2 .

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 342644.

It is not an unprimeable number, because it can be changed into a prime (342647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42827 + ... + 42834.

It is an arithmetic number, because the mean of its divisors is an integer number (99939).

2³⁴²⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

342644 is a deficient number, since it is larger than the sum of its proper divisors (256990).

342644 is a wasteful number, since it uses less digits than its factorization.

342644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85665 (or 85663 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 342644 is about 585.3580101101. The cubic root of 342644 is about 69.9757739296.

Adding to 342644 its reverse (446243), we get a palindrome (788887).

The spelling of 342644 in words is "three hundred forty-two thousand, six hundred forty-four".