342049820 has 24 divisors (see below), whose sum is σ = 820919904. Its totient is φ = 117274176.

The previous prime is 342049819. The next prime is 342049831. The reversal of 342049820 is 28940243.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1221467 + ... + 1221746.

It is an arithmetic number, because the mean of its divisors is an integer number (34204996).

Almost surely, 2^342049820 is an apocalyptic number.

It is an amenable number.

342049820 is an abundant number, since it is smaller than the sum of its proper divisors (478870084).

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

342049820 is a wasteful number, since it uses less digits than its factorization.

342049820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443229 (or 2443227 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 342049820 is about 18494.5889383895. The cubic root of 342049820 is about 699.3530212583.

The spelling of 342049820 in words is "three hundred forty-two million, forty-nine thousand, eight hundred twenty".