387424 has 12 divisors (see below), whose sum is σ = 762804. Its totient is φ = 193696.

The previous prime is 387403. The next prime is 387433. The reversal of 387424 is 424783.

It is a junction number, because it is equal to n+sod(n) for n = 387392 and 387401.

It is a congruent number.

It is an unprimeable number.

387424 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6022 + ... + 6085.

It is an arithmetic number, because the mean of its divisors is an integer number (63567).

2³⁸⁷⁴²⁴ is an apocalyptic number.

It is an amenable number.

387424 is a deficient number, since it is larger than the sum of its proper divisors (375380).

387424 is a wasteful number, since it uses less digits than its factorization.

387424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12117 (or 12109 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 387424 is about 622.4339322370. The cubic root of 387424 is about 72.9002202182.

The spelling of 387424 in words is "three hundred eighty-seven thousand, four hundred twenty-four".