385332146 has 4 divisors (see below), whose sum is σ = 577998222. Its totient is φ = 192666072.

The previous prime is 385332131. The next prime is 385332151. The reversal of 385332146 is 641233583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 641233583 = 23 ⋅27879721.

It can be written as a sum of positive squares in only one way, i.e., 379275625 + 6056521 = 19475^2 + 2461^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96333035 + ... + 96333038.

Almost surely, 2^385332146 is an apocalyptic number.

385332146 is a deficient number, since it is larger than the sum of its proper divisors (192666076).

385332146 is a wasteful number, since it uses less digits than its factorization.

385332146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192666075.

The product of its digits is 51840, while the sum is 35.

The square root of 385332146 is about 19629.8789094584. The cubic root of 385332146 is about 727.6877774472.

The spelling of 385332146 in words is "three hundred eighty-five million, three hundred thirty-two thousand, one hundred forty-six".