387238528 has 16 divisors (see below), whose sum is σ = 771452010. Its totient is φ = 193619200.

The previous prime is 387238517. The next prime is 387238531. The reversal of 387238528 is 825832783.

It can be written as a sum of positive squares in only one way, i.e., 241118784 + 146119744 = 15528^2 + 12088^2 .

It is a tau number, because it is divible by the number of its divisors (16).

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 as a sum of consecutive naturals, namely, 1512523 + ... + 1512778.

Almost surely, 2^387238528 is an apocalyptic number.

It is an amenable number.

387238528 is a deficient number, since it is larger than the sum of its proper divisors (384213482).

387238528 is an equidigital number, since it uses as much as digits as its factorization.

387238528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025315 (or 3025303 counting only the distinct ones).

The product of its digits is 645120, while the sum is 46.

The square root of 387238528 is about 19678.3771688623. The cubic root of 387238528 is about 728.8858515528.

The spelling of 387238528 in words is "three hundred eighty-seven million, two hundred thirty-eight thousand, five hundred twenty-eight".