387889344 has 56 divisors (see below), whose sum is σ = 1140327920. Its totient is φ = 129295872.

The previous prime is 387889343. The next prime is 387889349. The reversal of 387889344 is 443988783.

It is a super-3 number, since 3×387889344³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (387889343) 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, 110509 + ... + 113964.

Almost surely, 2^387889344 is an apocalyptic number.

It is an amenable number.

387889344 is an abundant number, since it is smaller than the sum of its proper divisors (752438576).

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

387889344 is a wasteful number, since it uses less digits than its factorization.

387889344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224494 (or 224478 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The square root of 387889344 is about 19694.9065496641. The cubic root of 387889344 is about 729.2939592488.

The spelling of 387889344 in words is "three hundred eighty-seven million, eight hundred eighty-nine thousand, three hundred forty-four".