387841284 has 30 divisors (see below), whose sum is σ = 1013894574. Its totient is φ = 129280320.

The previous prime is 387841283. The next prime is 387841303. The reversal of 387841284 is 482148783.

It can be written as a sum of positive squares in only one way, i.e., 364046400 + 23794884 = 19080^2 + 4878^2 .

It is not an unprimeable number, because it can be changed into a prime (387841283) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 598197 + ... + 598844.

Almost surely, 2^387841284 is an apocalyptic number.

It is an amenable number.

387841284 is an abundant number, since it is smaller than the sum of its proper divisors (626053290).

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

387841284 is a wasteful number, since it uses less digits than its factorization.

387841284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197057 (or 1197046 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 387841284 is about 19693.6863994530. The cubic root of 387841284 is about 729.2638378444.

The spelling of 387841284 in words is "three hundred eighty-seven million, eight hundred forty-one thousand, two hundred eighty-four".