215241828 has 48 divisors (see below), whose sum is σ = 550126080. Its totient is φ = 65196544.

The previous prime is 215241827. The next prime is 215241847. The reversal of 215241828 is 828142512.

It is not an unprimeable number, because it can be changed into a prime (215241821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12276 + ... + 24107.

It is an arithmetic number, because the mean of its divisors is an integer number (11460960).

Almost surely, 2^215241828 is an apocalyptic number.

It is an amenable number.

215241828 is an abundant number, since it is smaller than the sum of its proper divisors (334884252).

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

215241828 is a wasteful number, since it uses less digits than its factorization.

215241828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36436 (or 36434 counting only the distinct ones).

The product of its digits is 10240, while the sum is 33.

The square root of 215241828 is about 14671.1222474629. The cubic root of 215241828 is about 599.2971659174.

The spelling of 215241828 in words is "two hundred fifteen million, two hundred forty-one thousand, eight hundred twenty-eight".