382688280 has 256 divisors, whose sum is σ = 1392854400. Its totient is φ = 92897280.

The previous prime is 382688233. The next prime is 382688281. The reversal of 382688280 is 82886283.

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 (382688281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1361740 + ... + 1362020.

Almost surely, 2^382688280 is an apocalyptic number.

382688280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 382688280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (696427200).

382688280 is an abundant number, since it is smaller than the sum of its proper divisors (1010166120).

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

382688280 is a wasteful number, since it uses less digits than its factorization.

382688280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 382688280 is about 19562.4200956835. The cubic root of 382688280 is about 726.0196702546.

The spelling of 382688280 in words is "three hundred eighty-two million, six hundred eighty-eight thousand, two hundred eighty".