215046282 has 48 divisors (see below), whose sum is σ = 479910816. Its totient is φ = 64178400.

The previous prime is 215046269. The next prime is 215046301. The reversal of 215046282 is 282640512.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46432 + ... + 50852.

It is an arithmetic number, because the mean of its divisors is an integer number (9998142).

Almost surely, 2^215046282 is an apocalyptic number.

215046282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 215046282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239955408).

215046282 is an abundant number, since it is smaller than the sum of its proper divisors (264864534).

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

215046282 is a wasteful number, since it uses less digits than its factorization.

215046282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4515 (or 4504 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 215046282 is about 14664.4564167923. The cubic root of 215046282 is about 599.1156248860.

Adding to 215046282 its reverse (282640512), we get a palindrome (497686794).

The spelling of 215046282 in words is "two hundred fifteen million, forty-six thousand, two hundred eighty-two".