387220 has 24 divisors (see below), whose sum is σ = 856800. Its totient is φ = 146592.

The previous prime is 387203. The next prime is 387227. The reversal of 387220 is 22783.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 387191 and 387200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130 + ... + 889.

It is an arithmetic number, because the mean of its divisors is an integer number (35700).

2³⁸⁷²²⁰ is an apocalyptic number.

It is an amenable number.

387220 is an abundant number, since it is smaller than the sum of its proper divisors (469580).

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

387220 is a wasteful number, since it uses less digits than its factorization.

387220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 387220 is about 622.2700378453. The cubic root of 387220 is about 72.8874226494.

The spelling of 387220 in words is "three hundred eighty-seven thousand, two hundred twenty".