387587380 has 72 divisors (see below), whose sum is σ = 854848512. Its totient is φ = 147542976.

The previous prime is 387587359. The next prime is 387587381. The reversal of 387587380 is 83785783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387587381) 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, 1737949 + ... + 1738171.

It is an arithmetic number, because the mean of its divisors is an integer number (11872896).

Almost surely, 2^387587380 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 387587380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427424256).

387587380 is an abundant number, since it is smaller than the sum of its proper divisors (467261132).

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

387587380 is a wasteful number, since it uses less digits than its factorization.

387587380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

The square root of 387587380 is about 19687.2390141431. The cubic root of 387587380 is about 729.1046632593.

The spelling of 387587380 in words is "three hundred eighty-seven million, five hundred eighty-seven thousand, three hundred eighty".