385847826 has 64 divisors (see below), whose sum is σ = 953745408. Its totient is φ = 101337408.

The previous prime is 385847821. The next prime is 385847831. The reversal of 385847826 is 628748583.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (385847821) and next prime (385847831).

It is a super-3 number, since 3×385847826³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (385847821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142255 + ... + 144941.

It is an arithmetic number, because the mean of its divisors is an integer number (14902272).

Almost surely, 2^385847826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385847826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (476872704).

385847826 is an abundant number, since it is smaller than the sum of its proper divisors (567897582).

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

385847826 is a wasteful number, since it uses less digits than its factorization.

385847826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975.

The product of its digits is 2580480, while the sum is 51.

The square root of 385847826 is about 19643.0095962915. The cubic root of 385847826 is about 728.0122479624.

The spelling of 385847826 in words is "three hundred eighty-five million, eight hundred forty-seven thousand, eight hundred twenty-six".