385473330 has 336 divisors, whose sum is σ = 1255988160. Its totient is φ = 84680640.

The previous prime is 385473323. The next prime is 385473337. The reversal of 385473330 is 33374583.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (385473323) and next prime (385473337).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385473337) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 16759699 + ... + 16759721.

It is an arithmetic number, because the mean of its divisors is an integer number (3738060).

Almost surely, 2^385473330 is an apocalyptic number.

385473330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 385473330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627994080).

385473330 is an abundant number, since it is smaller than the sum of its proper divisors (870514830).

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

385473330 is a wasteful number, since it uses less digits than its factorization.

385473330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 385473330 is about 19633.4747306736. The cubic root of 385473330 is about 727.7766404599.

The spelling of 385473330 in words is "three hundred eighty-five million, four hundred seventy-three thousand, three hundred thirty".