387434212 has 12 divisors (see below), whose sum is σ = 739647216. Its totient is φ = 176106440.

The previous prime is 387434209. The next prime is 387434221. The reversal of 387434212 is 212434783.

It is a super-3 number, since 3×387434212³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4402618 + ... + 4402705.

It is an arithmetic number, because the mean of its divisors is an integer number (61637268).

Almost surely, 2^387434212 is an apocalyptic number.

It is an amenable number.

387434212 is a deficient number, since it is larger than the sum of its proper divisors (352213004).

387434212 is a wasteful number, since it uses less digits than its factorization.

387434212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8805338 (or 8805336 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 387434212 is about 19683.3485972281. The cubic root of 387434212 is about 729.0086073136.

Adding to 387434212 its reverse (212434783), we get a palindrome (599868995).

The spelling of 387434212 in words is "three hundred eighty-seven million, four hundred thirty-four thousand, two hundred twelve".