387239424 has 320 divisors, whose sum is σ = 1270418688. Its totient is φ = 103219200.

The previous prime is 387239417. The next prime is 387239441. The reversal of 387239424 is 424932783.

It is a super-3 number, since 3×387239424³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9005547 + ... + 9005589.

Almost surely, 2^387239424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 387239424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635209344).

387239424 is an abundant number, since it is smaller than the sum of its proper divisors (883179264).

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

387239424 is a wasteful number, since it uses less digits than its factorization.

387239424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 113 counting only the distinct ones).

The product of its digits is 290304, while the sum is 42.

The square root of 387239424 is about 19678.3999349541. The cubic root of 387239424 is about 728.8864137224.

The spelling of 387239424 in words is "three hundred eighty-seven million, two hundred thirty-nine thousand, four hundred twenty-four".