342902820 has 96 divisors (see below), whose sum is σ = 1037232000. Its totient is φ = 84142080.

The previous prime is 342902783. The next prime is 342902891. The reversal of 342902820 is 28209243.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 388780 + ... + 389660.

It is an arithmetic number, because the mean of its divisors is an integer number (10804500).

Almost surely, 2^342902820 is an apocalyptic number.

342902820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 342902820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (518616000).

342902820 is an abundant number, since it is smaller than the sum of its proper divisors (694329180).

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

342902820 is a wasteful number, since it uses less digits than its factorization.

342902820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405 (or 1403 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 342902820 is about 18517.6353782010. The cubic root of 342902820 is about 699.9338849121.

The spelling of 342902820 in words is "three hundred forty-two million, nine hundred two thousand, eight hundred twenty".