387213324 has 12 divisors (see below), whose sum is σ = 903497784. Its totient is φ = 129071104.

The previous prime is 387213319. The next prime is 387213341. The reversal of 387213324 is 423312783.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 16133877 + ... + 16133900.

It is an arithmetic number, because the mean of its divisors is an integer number (75291482).

Almost surely, 2^387213324 is an apocalyptic number.

It is an amenable number.

387213324 is an abundant number, since it is smaller than the sum of its proper divisors (516284460).

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

387213324 is a wasteful number, since it uses less digits than its factorization.

387213324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32267784 (or 32267782 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 387213324 is about 19677.7367601053. The cubic root of 387213324 is about 728.8700376670.

The spelling of 387213324 in words is "three hundred eighty-seven million, two hundred thirteen thousand, three hundred twenty-four".