385146643 has 16 divisors (see below), whose sum is σ = 446616576. Its totient is φ = 325310400.

The previous prime is 385146637. The next prime is 385146647. The reversal of 385146643 is 346641583.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385146643 is a prime.

It is a super-2 number, since 2×385146643² = 296675873228338898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 385146596 and 385146605.

It is not an unprimeable number, because it can be changed into a prime (385146647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348630 + ... + 349732.

It is an arithmetic number, because the mean of its divisors is an integer number (27913536).

Almost surely, 2^385146643 is an apocalyptic number.

385146643 is a deficient number, since it is larger than the sum of its proper divisors (61469933).

385146643 is a wasteful number, since it uses less digits than its factorization.

385146643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794.

The product of its digits is 207360, while the sum is 40.

The square root of 385146643 is about 19625.1533242418. The cubic root of 385146643 is about 727.5709864877.

The spelling of 385146643 in words is "three hundred eighty-five million, one hundred forty-six thousand, six hundred forty-three".