385209258 has 16 divisors (see below), whose sum is σ = 880478400. Its totient is φ = 110059776.

The previous prime is 385209217. The next prime is 385209259. The reversal of 385209258 is 852902583.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 9171649 = 385209258 / (3 + 8 + 5 + 2 + 0 + 9 + 2 + 5 + 8).

It is not an unprimeable number, because it can be changed into a prime (385209259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4585783 + ... + 4585866.

It is an arithmetic number, because the mean of its divisors is an integer number (55029900).

Almost surely, 2^385209258 is an apocalyptic number.

385209258 is an abundant number, since it is smaller than the sum of its proper divisors (495269142).

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

385209258 is a wasteful number, since it uses less digits than its factorization.

385209258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9171661.

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 385209258 is about 19626.7485335702. The cubic root of 385209258 is about 727.6104124999.

The spelling of 385209258 in words is "three hundred eighty-five million, two hundred nine thousand, two hundred fifty-eight".