387666244 has 36 divisors (see below), whose sum is σ = 790307280. Its totient is φ = 165905040.

The previous prime is 387666241. The next prime is 387666271. The reversal of 387666244 is 442666783.

It is a junction number, because it is equal to n+sod(n) for n = 387666194 and 387666203.

It is not an unprimeable number, because it can be changed into a prime (387666241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245979 + ... + 247549.

It is an arithmetic number, because the mean of its divisors is an integer number (21952980).

Almost surely, 2^387666244 is an apocalyptic number.

It is an amenable number.

387666244 is an abundant number, since it is smaller than the sum of its proper divisors (402641036).

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

387666244 is a wasteful number, since it uses less digits than its factorization.

387666244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2848 (or 2839 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 46.

The square root of 387666244 is about 19689.2418340575. The cubic root of 387666244 is about 729.1541112149.

The spelling of 387666244 in words is "three hundred eighty-seven million, six hundred sixty-six thousand, two hundred forty-four".