385308490 has 16 divisors (see below), whose sum is σ = 792634752. Its totient is φ = 132105744.

The previous prime is 385308449. The next prime is 385308523. The reversal of 385308490 is 94803583.

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, 2752134 + ... + 2752273.

It is an arithmetic number, because the mean of its divisors is an integer number (49539672).

Almost surely, 2^385308490 is an apocalyptic number.

385308490 is an abundant number, since it is smaller than the sum of its proper divisors (407326262).

385308490 is a wasteful number, since it uses less digits than its factorization.

385308490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5504421.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 385308490 is about 19629.2763493716. The cubic root of 385308490 is about 727.6728859356.

The spelling of 385308490 in words is "three hundred eighty-five million, three hundred eight thousand, four hundred ninety".