342220905 has 24 divisors (see below), whose sum is σ = 638813448. Its totient is φ = 168477696.

The previous prime is 342220903. The next prime is 342220927. The reversal of 342220905 is 509022243.

It can be written as a sum of positive squares in 4 ways, for example, as 4359744 + 337861161 = 2088^2 + 18381^2 .

It is not a de Polignac number, because 342220905 - 2¹ = 342220903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (342220903) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 291912 + ... + 293081.

It is an arithmetic number, because the mean of its divisors is an integer number (26617227).

Almost surely, 2^342220905 is an apocalyptic number.

It is an amenable number.

342220905 is a deficient number, since it is larger than the sum of its proper divisors (296592543).

342220905 is a wasteful number, since it uses less digits than its factorization.

342220905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585017 (or 585014 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 342220905 is about 18499.2136319358. The cubic root of 342220905 is about 699.4696016137.

The spelling of 342220905 in words is "three hundred forty-two million, two hundred twenty thousand, nine hundred five".