342882640 has 20 divisors (see below), whose sum is σ = 797202324. Its totient is φ = 137153024.

The previous prime is 342882629. The next prime is 342882653. The reversal of 342882640 is 46288243.

It can be written as a sum of positive squares in 2 ways, for example, as 261016336 + 81866304 = 16156^2 + 9048^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 342882640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2142937 + ... + 2143096.

Almost surely, 2^342882640 is an apocalyptic number.

It is an amenable number.

342882640 is an abundant number, since it is smaller than the sum of its proper divisors (454319684).

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

342882640 is a wasteful number, since it uses less digits than its factorization.

342882640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286046 (or 4286040 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 342882640 is about 18517.0904841986. The cubic root of 342882640 is about 699.9201541580.

It can be divided in two parts, 3428 and 82640, that added together give a palindrome (86068).

The spelling of 342882640 in words is "three hundred forty-two million, eight hundred eighty-two thousand, six hundred forty".