215830914 has 24 divisors (see below), whose sum is σ = 467422992. Its totient is φ = 66409200.

The previous prime is 215830891. The next prime is 215830931. The reversal of 215830914 is 419038512.

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 11 ways as a sum of consecutive naturals, for example, 105412 + ... + 107439.

It is an arithmetic number, because the mean of its divisors is an integer number (19475958).

Almost surely, 2^215830914 is an apocalyptic number.

215830914 is an abundant number, since it is smaller than the sum of its proper divisors (251592078).

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

215830914 is a wasteful number, since it uses less digits than its factorization.

215830914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212882 (or 212869 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 215830914 is about 14691.1849079644. The cubic root of 215830914 is about 599.8433980188.

The spelling of 215830914 in words is "two hundred fifteen million, eight hundred thirty thousand, nine hundred fourteen".