342505408 has 28 divisors (see below), whose sum is σ = 776754352. Its totient is φ = 146787840.

The previous prime is 342505379. The next prime is 342505439. The reversal of 342505408 is 804505243.

It is a tau number, because it is divible by the number of its divisors (28).

It is a self number, because there is not a number n which added to its sum of digits gives 342505408.

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, 381813 + ... + 382708.

Almost surely, 2^342505408 is an apocalyptic number.

It is an amenable number.

342505408 is an abundant number, since it is smaller than the sum of its proper divisors (434248944).

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

342505408 is an equidigital number, since it uses as much as digits as its factorization.

342505408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764540 (or 764530 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 342505408 is about 18506.9016315536. The cubic root of 342505408 is about 699.6633810083.

The spelling of 342505408 in words is "three hundred forty-two million, five hundred five thousand, four hundred eight".