385226655 has 64 divisors (see below), whose sum is σ = 710664192. Its totient is φ = 176359040.

The previous prime is 385226641. The next prime is 385226669. The reversal of 385226655 is 556622583.

It is an interprime number because it is at equal distance from previous prime (385226641) and next prime (385226669).

It is not a de Polignac number, because 385226655 - 2⁵ = 385226623 is a prime.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 314374 + ... + 315596.

It is an arithmetic number, because the mean of its divisors is an integer number (11104128).

Almost surely, 2^385226655 is an apocalyptic number.

385226655 is a deficient number, since it is larger than the sum of its proper divisors (325437537).

385226655 is a wasteful number, since it uses less digits than its factorization.

385226655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348.

The product of its digits is 432000, while the sum is 42.

The square root of 385226655 is about 19627.1917247476. The cubic root of 385226655 is about 727.6213658952.

It can be divided in two parts, 385226 and 655, that added together give a triangular number (385881 = T₈₇₈).

The spelling of 385226655 in words is "three hundred eighty-five million, two hundred twenty-six thousand, six hundred fifty-five".