387240383 has 16 divisors (see below), whose sum is σ = 402831360. Its totient is φ = 372060000.

The previous prime is 387240377. The next prime is 387240389. The reversal of 387240383 is 383042783.

It is an interprime number because it is at equal distance from previous prime (387240377) and next prime (387240389).

It is a cyclic number.

It is not a de Polignac number, because 387240383 - 2²⁰ = 386191807 is a prime.

It is a super-2 number, since 2×387240383² = 299910228451973378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387240389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515258 + ... + 516008.

It is an arithmetic number, because the mean of its divisors is an integer number (25176960).

Almost surely, 2^387240383 is an apocalyptic number.

387240383 is a deficient number, since it is larger than the sum of its proper divisors (15590977).

387240383 is a wasteful number, since it uses less digits than its factorization.

387240383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 387240383 is about 19678.4243017575. The cubic root of 387240383 is about 728.8870154186.

The spelling of 387240383 in words is "three hundred eighty-seven million, two hundred forty thousand, three hundred eighty-three".