340042212 has 60 divisors (see below), whose sum is σ = 927607296. Its totient is φ = 108416880.

The previous prime is 340042207. The next prime is 340042231. The reversal of 340042212 is 212240043.

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

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 19 ways as a sum of consecutive naturals, for example, 15364 + ... + 30267.

Almost surely, 2^340042212 is an apocalyptic number.

It is an amenable number.

340042212 is an abundant number, since it is smaller than the sum of its proper divisors (587565084).

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

340042212 is a wasteful number, since it uses less digits than its factorization.

340042212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45670 (or 45659 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 340042212 is about 18440.2335126213. The cubic root of 340042212 is about 697.9820878100.

Adding to 340042212 its reverse (212240043), we get a palindrome (552282255).

The spelling of 340042212 in words is "three hundred forty million, forty-two thousand, two hundred twelve".