387018 has 20 divisors (see below), whose sum is σ = 867570. Its totient is φ = 128952.

The previous prime is 387017. The next prime is 387031. The reversal of 387018 is 810783.

It can be written as a sum of positive squares in only one way, i.e., 363609 + 23409 = 603^2 + 153^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 386982 and 387000.

It is not an unprimeable number, because it can be changed into a prime (387017) 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, 1033 + ... + 1356.

2³⁸⁷⁰¹⁸ is an apocalyptic number.

387018 is an abundant number, since it is smaller than the sum of its proper divisors (480552).

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

387018 is a wasteful number, since it uses less digits than its factorization.

387018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403 (or 2394 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 387018 is about 622.1077077163. The cubic root of 387018 is about 72.8747461172.

It can be divided in two parts, 38 and 7018, that added together give a square (7056 = 84²).

The spelling of 387018 in words is "three hundred eighty-seven thousand, eighteen".