382152780 has 72 divisors (see below), whose sum is σ = 1166229792. Its totient is φ = 101289216.

The previous prime is 382152769. The next prime is 382152781. The reversal of 382152780 is 87251283.

382152780 is a `hidden beast` number, since 38 + 21 + 527 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (382152781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23704 + ... + 36416.

It is an arithmetic number, because the mean of its divisors is an integer number (16197636).

Almost surely, 2^382152780 is an apocalyptic number.

382152780 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 382152780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (583114896).

382152780 is an abundant number, since it is smaller than the sum of its proper divisors (784077012).

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

382152780 is a wasteful number, since it uses less digits than its factorization.

382152780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12895 (or 12890 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 382152780 is about 19548.7283473887. The cubic root of 382152780 is about 725.6808696886.

The spelling of 382152780 in words is "three hundred eighty-two million, one hundred fifty-two thousand, seven hundred eighty".