385009955 has 8 divisors (see below), whose sum is σ = 504013104. Its totient is φ = 280007200.

The previous prime is 385009873. The next prime is 385009991. The reversal of 385009955 is 559900583.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 385009955 - 2⁸ = 385009699 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3500036 + ... + 3500145.

It is an arithmetic number, because the mean of its divisors is an integer number (63001638).

Almost surely, 2^385009955 is an apocalyptic number.

385009955 is a deficient number, since it is larger than the sum of its proper divisors (119003149).

385009955 is a wasteful number, since it uses less digits than its factorization.

385009955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7000197.

The product of its (nonzero) digits is 243000, while the sum is 44.

The square root of 385009955 is about 19621.6705455983. The cubic root of 385009955 is about 727.4849049981.

The spelling of 385009955 in words is "three hundred eighty-five million, nine thousand, nine hundred fifty-five".