385840244 has 12 divisors (see below), whose sum is σ = 698504100. Its totient is φ = 186267648.

The previous prime is 385840243. The next prime is 385840253. The reversal of 385840244 is 442048583.

It can be written as a sum of positive squares in 2 ways, for example, as 167391844 + 218448400 = 12938^2 + 14780^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 385840198 and 385840207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385840241) 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 3 ways as a sum of consecutive naturals, for example, 1662989 + ... + 1663220.

It is an arithmetic number, because the mean of its divisors is an integer number (58208675).

Almost surely, 2^385840244 is an apocalyptic number.

It is an amenable number.

385840244 is a deficient number, since it is larger than the sum of its proper divisors (312663856).

385840244 is a wasteful number, since it uses less digits than its factorization.

385840244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326242 (or 3326240 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 38.

The square root of 385840244 is about 19642.8166004776. The cubic root of 385840244 is about 728.0074793942.

The spelling of 385840244 in words is "three hundred eighty-five million, eight hundred forty thousand, two hundred forty-four".