342661644 has 96 divisors (see below), whose sum is σ = 972646080. Its totient is φ = 103680000.

The previous prime is 342661643. The next prime is 342661663. The reversal of 342661644 is 446166243.

342661644 is a `hidden beast` number, since 3 + 4 + 2 + 6 + 6 + 1 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 342661599 and 342661608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342661643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83644 + ... + 87644.

It is an arithmetic number, because the mean of its divisors is an integer number (10131730).

Almost surely, 2^342661644 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 342661644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486323040).

342661644 is an abundant number, since it is smaller than the sum of its proper divisors (629984436).

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

342661644 is a wasteful number, since it uses less digits than its factorization.

342661644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4088 (or 4080 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 342661644 is about 18511.1221701981. The cubic root of 342661644 is about 699.7697501229.

The spelling of 342661644 in words is "three hundred forty-two million, six hundred sixty-one thousand, six hundred forty-four".