215719242 has 16 divisors (see below), whose sum is σ = 432145152. Its totient is φ = 71788640.

The previous prime is 215719219. The next prime is 215719267. The reversal of 215719242 is 242917512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25434 + ... + 32837.

It is an arithmetic number, because the mean of its divisors is an integer number (27009072).

Almost surely, 2^215719242 is an apocalyptic number.

215719242 is an abundant number, since it is smaller than the sum of its proper divisors (216425910).

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

215719242 is a wasteful number, since it uses less digits than its factorization.

215719242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58893.

The product of its digits is 10080, while the sum is 33.

The square root of 215719242 is about 14687.3837697529. The cubic root of 215719242 is about 599.7399261745.

The spelling of 215719242 in words is "two hundred fifteen million, seven hundred nineteen thousand, two hundred forty-two".