282115920 has 40 divisors (see below), whose sum is σ = 874560096. Its totient is φ = 75230848.

The previous prime is 282115891. The next prime is 282115937. The reversal of 282115920 is 29511282.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

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 7 ways as a sum of consecutive naturals, for example, 587502 + ... + 587981.

Almost surely, 2^282115920 is an apocalyptic number.

282115920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

282115920 is an abundant number, since it is smaller than the sum of its proper divisors (592444176).

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

282115920 is a wasteful number, since it uses less digits than its factorization.

282115920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175499 (or 1175493 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 282115920 is about 16796.3067368990. The cubic root of 282115920 is about 655.8570603693.

The spelling of 282115920 in words is "two hundred eighty-two million, one hundred fifteen thousand, nine hundred twenty".