342293728 has 144 divisors (see below), whose sum is σ = 842849280. Its totient is φ = 133765632.

The previous prime is 342293719. The next prime is 342293729. The reversal of 342293728 is 827392243.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342293729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4332793 + ... + 4332871.

It is an arithmetic number, because the mean of its divisors is an integer number (5853120).

Almost surely, 2^342293728 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 342293728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421424640).

342293728 is an abundant number, since it is smaller than the sum of its proper divisors (500555552).

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

342293728 is a wasteful number, since it uses less digits than its factorization.

342293728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 140 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 342293728 is about 18501.1818000905. The cubic root of 342293728 is about 699.5192127093.

The spelling of 342293728 in words is "three hundred forty-two million, two hundred ninety-three thousand, seven hundred twenty-eight".