385999037226 has 256 divisors, whose sum is σ = 981194342400. Its totient is φ = 111421094400.

The previous prime is 385999037213. The next prime is 385999037233. The reversal of 385999037226 is 622730999583.

385999037226 is a `hidden beast` number, since 3 + 8 + 599 + 9 + 0 + 37 + 2 + 2 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 519513811 + ... + 519514553.

It is an arithmetic number, because the mean of its divisors is an integer number (3832790400).

Almost surely, 2^385999037226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385999037226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490597171200).

385999037226 is an abundant number, since it is smaller than the sum of its proper divisors (595195305174).

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

385999037226 is a wasteful number, since it uses less digits than its factorization.

385999037226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202 (or 1196 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 63.

The spelling of 385999037226 in words is "three hundred eighty-five billion, nine hundred ninety-nine million, thirty-seven thousand, two hundred twenty-six".