282378390 has 64 divisors (see below), whose sum is σ = 784373760. Its totient is φ = 63722880.

The previous prime is 282378379. The next prime is 282378403. The reversal of 282378390 is 93873282.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8080 + ... + 25100.

It is an arithmetic number, because the mean of its divisors is an integer number (12255840).

Almost surely, 2^282378390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 282378390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392186880).

282378390 is an abundant number, since it is smaller than the sum of its proper divisors (501995370).

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

282378390 is a wasteful number, since it uses less digits than its factorization.

282378390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17117.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 282378390 is about 16804.1182452398. The cubic root of 282378390 is about 656.0603922068.

The spelling of 282378390 in words is "two hundred eighty-two million, three hundred seventy-eight thousand, three hundred ninety".