385900646 has 16 divisors (see below), whose sum is σ = 613584720. Its totient is φ = 181397760.

The previous prime is 385900609. The next prime is 385900649. The reversal of 385900646 is 646009583.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385900649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27170 + ... + 38858.

It is an arithmetic number, because the mean of its divisors is an integer number (38349045).

Almost surely, 2^385900646 is an apocalyptic number.

385900646 is a deficient number, since it is larger than the sum of its proper divisors (227684074).

385900646 is a wasteful number, since it uses less digits than its factorization.

385900646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12679.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 385900646 is about 19644.3540489373. The cubic root of 385900646 is about 728.0454664576.

The spelling of 385900646 in words is "three hundred eighty-five million, nine hundred thousand, six hundred forty-six".