342138040 has 16 divisors (see below), whose sum is σ = 769810680. Its totient is φ = 136855200.

The previous prime is 342138037. The next prime is 342138059. The reversal of 342138040 is 40831243.

It is a junction number, because it is equal to n+sod(n) for n = 342137996 and 342138014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4276686 + ... + 4276765.

Almost surely, 2^342138040 is an apocalyptic number.

It is an amenable number.

342138040 is an abundant number, since it is smaller than the sum of its proper divisors (427672640).

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

342138040 is a wasteful number, since it uses less digits than its factorization.

342138040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8553462 (or 8553458 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 342138040 is about 18496.9738065447. The cubic root of 342138040 is about 699.4131407852.

Adding to 342138040 its reverse (40831243), we get a palindrome (382969283).

The spelling of 342138040 in words is "three hundred forty-two million, one hundred thirty-eight thousand, forty".