387644338 has 8 divisors (see below), whose sum is σ = 597181932. Its totient is φ = 188583696.

The previous prime is 387644329. The next prime is 387644351. The reversal of 387644338 is 833446783.

It can be written as a sum of positive squares in 2 ways, for example, as 357096609 + 30547729 = 18897^2 + 5527^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2619145 + ... + 2619292.

Almost surely, 2^387644338 is an apocalyptic number.

387644338 is a deficient number, since it is larger than the sum of its proper divisors (209537594).

387644338 is a wasteful number, since it uses less digits than its factorization.

387644338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5238476.

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

The square root of 387644338 is about 19688.6855325590. The cubic root of 387644338 is about 729.1403767624.

The spelling of 387644338 in words is "three hundred eighty-seven million, six hundred forty-four thousand, three hundred thirty-eight".