382387860 has 36 divisors (see below), whose sum is σ = 1159910388. Its totient is φ = 101970048.

The previous prime is 382387829. The next prime is 382387913. The reversal of 382387860 is 68783283.

It can be written as a sum of positive squares in 2 ways, for example, as 202720644 + 179667216 = 14238^2 + 13404^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1062009 + ... + 1062368.

It is an arithmetic number, because the mean of its divisors is an integer number (32219733).

Almost surely, 2^382387860 is an apocalyptic number.

382387860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

382387860 is an abundant number, since it is smaller than the sum of its proper divisors (777522528).

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

382387860 is a wasteful number, since it uses less digits than its factorization.

382387860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124392 (or 2124387 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 382387860 is about 19554.7400903208. The cubic root of 382387860 is about 725.8296392382.

The spelling of 382387860 in words is "three hundred eighty-two million, three hundred eighty-seven thousand, eight hundred sixty".