387070668 has 72 divisors (see below), whose sum is σ = 1008274176. Its totient is φ = 125126400.

The previous prime is 387070667. The next prime is 387070693. The reversal of 387070668 is 866070783.

It is not an unprimeable number, because it can be changed into a prime (387070661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 281230 + ... + 282602.

It is an arithmetic number, because the mean of its divisors is an integer number (14003808).

Almost surely, 2^387070668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 387070668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504137088).

387070668 is an abundant number, since it is smaller than the sum of its proper divisors (621203508).

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

387070668 is a wasteful number, since it uses less digits than its factorization.

387070668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615 (or 1610 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 387070668 is about 19674.1116190795. Note that the first 3 decimals coincide. The cubic root of 387070668 is about 728.7805172835.

The spelling of 387070668 in words is "three hundred eighty-seven million, seventy thousand, six hundred sixty-eight".