385023436 has 48 divisors (see below), whose sum is σ = 789820416. Its totient is φ = 160804224.

The previous prime is 385023433. The next prime is 385023449. The reversal of 385023436 is 634320583.

It is not an unprimeable number, because it can be changed into a prime (385023433) 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 15 ways as a sum of consecutive naturals, for example, 403536 + ... + 404488.

It is an arithmetic number, because the mean of its divisors is an integer number (16454592).

Almost surely, 2^385023436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385023436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394910208).

385023436 is an abundant number, since it is smaller than the sum of its proper divisors (404796980).

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

385023436 is a wasteful number, since it uses less digits than its factorization.

385023436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318 (or 1316 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 385023436 is about 19622.0140658394. The cubic root of 385023436 is about 727.4933957825.

The spelling of 385023436 in words is "three hundred eighty-five million, twenty-three thousand, four hundred thirty-six".