385515100 has 18 divisors (see below), whose sum is σ = 836567984. Its totient is φ = 154206000.

The previous prime is 385515089. The next prime is 385515107. The reversal of 385515100 is 1515583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385515107) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 1927476 + ... + 1927675.

Almost surely, 2^385515100 is an apocalyptic number.

It is an amenable number.

385515100 is an abundant number, since it is smaller than the sum of its proper divisors (451052884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385515100 is a wasteful number, since it uses less digits than its factorization.

385515100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3855165 (or 3855158 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 385515100 is about 19634.5384463195. The cubic root of 385515100 is about 727.8029268719.

The spelling of 385515100 in words is "three hundred eighty-five million, five hundred fifteen thousand, one hundred".