385481291 has 8 divisors (see below), whose sum is σ = 436983120. Its totient is φ = 337100832.

The previous prime is 385481287. The next prime is 385481321. The reversal of 385481291 is 192184583.

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

It is a cyclic number.

It is not a de Polignac number, because 385481291 - 2² = 385481287 is a prime.

It is a super-2 number, since 2×385481291² = 297191651422053362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385484291) 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 7 ways as a sum of consecutive naturals, for example, 780080 + ... + 780573.

It is an arithmetic number, because the mean of its divisors is an integer number (54622890).

Almost surely, 2^385481291 is an apocalyptic number.

385481291 is a deficient number, since it is larger than the sum of its proper divisors (51501829).

385481291 is a wasteful number, since it uses less digits than its factorization.

385481291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560685.

The product of its digits is 69120, while the sum is 41.

The square root of 385481291 is about 19633.6774701022. The cubic root of 385481291 is about 727.7816505687.

The spelling of 385481291 in words is "three hundred eighty-five million, four hundred eighty-one thousand, two hundred ninety-one".