385290361 has 4 divisors (see below), whose sum is σ = 395703652. Its totient is φ = 374877072.

The previous prime is 385290343. The next prime is 385290383. The reversal of 385290361 is 163092583.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 146773225 + 238517136 = 12115^2 + 15444^2 .

It is a cyclic number.

It is not a de Polignac number, because 385290361 - 2¹⁹ = 384766073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 10413253 = 385290361 / (3 + 8 + 5 + 2 + 9 + 0 + 3 + 6 + 1).

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 385290361.

It is not an unprimeable number, because it can be changed into a prime (385290331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5206590 + ... + 5206663.

It is an arithmetic number, because the mean of its divisors is an integer number (98925913).

Almost surely, 2^385290361 is an apocalyptic number.

It is an amenable number.

385290361 is a deficient number, since it is larger than the sum of its proper divisors (10413291).

385290361 is a wasteful number, since it uses less digits than its factorization.

385290361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10413290.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 385290361 is about 19628.8145592137. The cubic root of 385290361 is about 727.6614732719.

The spelling of 385290361 in words is "three hundred eighty-five million, two hundred ninety thousand, three hundred sixty-one".