342120312 has 48 divisors (see below), whose sum is σ = 927426240. Its totient is φ = 113935488.

The previous prime is 342120281. The next prime is 342120313. The reversal of 342120312 is 213021243.

342120312 is a `hidden beast` number, since 342 + 12 + 0 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342120313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153913 + ... + 156119.

It is an arithmetic number, because the mean of its divisors is an integer number (19321380).

Almost surely, 2^342120312 is an apocalyptic number.

It is an amenable number.

342120312 is an abundant number, since it is smaller than the sum of its proper divisors (585305928).

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

342120312 is a wasteful number, since it uses less digits than its factorization.

342120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372 (or 4365 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 342120312 is about 18496.4945868129. The cubic root of 342120312 is about 699.4010604659.

Adding to 342120312 its reverse (213021243), we get a palindrome (555141555).

The spelling of 342120312 in words is "three hundred forty-two million, one hundred twenty thousand, three hundred twelve".