282478140 has 108 divisors (see below), whose sum is σ = 996775416. Its totient is φ = 64564416.

The previous prime is 282478127. The next prime is 282478153. The reversal of 282478140 is 41874282.

It is an interprime number because it is at equal distance from previous prime (282478127) and next prime (282478153).

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

It is a junction number, because it is equal to n+sod(n) for n = 282478095 and 282478104.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 7194 + ... + 24833.

It is an arithmetic number, because the mean of its divisors is an integer number (9229402).

Almost surely, 2^282478140 is an apocalyptic number.

282478140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

282478140 is an abundant number, since it is smaller than the sum of its proper divisors (714297276).

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

282478140 is a wasteful number, since it uses less digits than its factorization.

282478140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32056 (or 32044 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 282478140 is about 16807.0860056108. The cubic root of 282478140 is about 656.1376340947.

The spelling of 282478140 in words is "two hundred eighty-two million, four hundred seventy-eight thousand, one hundred forty".