215419830 has 32 divisors (see below), whose sum is σ = 534837600. Its totient is φ = 55464192.

The previous prime is 215419829. The next prime is 215419843. The reversal of 215419830 is 38914512.

It is a junction number, because it is equal to n+sod(n) for n = 215419791 and 215419800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122935 + ... + 124674.

It is an arithmetic number, because the mean of its divisors is an integer number (16713675).

Almost surely, 2^215419830 is an apocalyptic number.

215419830 is an abundant number, since it is smaller than the sum of its proper divisors (319417770).

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

215419830 is a wasteful number, since it uses less digits than its factorization.

215419830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247648.

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

The square root of 215419830 is about 14677.1874008612. The cubic root of 215419830 is about 599.4623238735.

The spelling of 215419830 in words is "two hundred fifteen million, four hundred nineteen thousand, eight hundred thirty".