342995780 has 96 divisors (see below), whose sum is σ = 789626880. Its totient is φ = 124755840.

The previous prime is 342995773. The next prime is 342995827. The reversal of 342995780 is 87599243.

It is a happy number.

It is a super-2 number, since 2×342995780² = 235292210195616800, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 955241 + ... + 955599.

It is an arithmetic number, because the mean of its divisors is an integer number (8225280).

Almost surely, 2^342995780 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 342995780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394813440).

342995780 is an abundant number, since it is smaller than the sum of its proper divisors (446631100).

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

342995780 is a wasteful number, since it uses less digits than its factorization.

342995780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 342995780 is about 18520.1452478106. The cubic root of 342995780 is about 699.9971292399.

The spelling of 342995780 in words is "three hundred forty-two million, nine hundred ninety-five thousand, seven hundred eighty".