384885270 has 384 divisors, whose sum is σ = 1381266432. Its totient is φ = 75271680.

The previous prime is 384885257. The next prime is 384885271. The reversal of 384885270 is 72588483.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384885271) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 22640302 + ... + 22640318.

It is an arithmetic number, because the mean of its divisors is an integer number (3597048).

Almost surely, 2^384885270 is an apocalyptic number.

384885270 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 384885270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (690633216).

384885270 is an abundant number, since it is smaller than the sum of its proper divisors (996381162).

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

384885270 is a wasteful number, since it uses less digits than its factorization.

384885270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The square root of 384885270 is about 19618.4930613949. The cubic root of 384885270 is about 727.4063648221.

The spelling of 384885270 in words is "three hundred eighty-four million, eight hundred eighty-five thousand, two hundred seventy".