384648157 has 4 divisors (see below), whose sum is σ = 384975036. Its totient is φ = 384321280.

The previous prime is 384648151. The next prime is 384648163. The reversal of 384648157 is 751846483.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (384648151) and next prime (384648163).

It can be written as a sum of positive squares in 2 ways, for example, as 365803876 + 18844281 = 19126^2 + 4341^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-384648157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384648151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161668 + ... + 164029.

It is an arithmetic number, because the mean of its divisors is an integer number (96243759).

Almost surely, 2^384648157 is an apocalyptic number.

It is an amenable number.

384648157 is a deficient number, since it is larger than the sum of its proper divisors (326879).

384648157 is a wasteful number, since it uses less digits than its factorization.

384648157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326878.

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

The square root of 384648157 is about 19612.4490311639. The cubic root of 384648157 is about 727.2569584493.

It can be divided in two parts, 3846 and 48157, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 384648157 in words is "three hundred eighty-four million, six hundred forty-eight thousand, one hundred fifty-seven".