215341434 has 96 divisors (see below), whose sum is σ = 584962560. Its totient is φ = 55620000.

The previous prime is 215341403. The next prime is 215341447. The reversal of 215341434 is 434143512.

It is a happy number.

215341434 is a `hidden beast` number, since 215 + 3 + 414 + 34 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 215341398 and 215341407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 347577 + ... + 348195.

It is an arithmetic number, because the mean of its divisors is an integer number (6093360).

Almost surely, 2^215341434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215341434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292481280).

215341434 is an abundant number, since it is smaller than the sum of its proper divisors (369621126).

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

215341434 is a wasteful number, since it uses less digits than its factorization.

215341434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896 (or 893 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 215341434 is about 14674.5164826648. The cubic root of 215341434 is about 599.3895958886.

Adding to 215341434 its reverse (434143512), we get a palindrome (649484946).

The spelling of 215341434 in words is "two hundred fifteen million, three hundred forty-one thousand, four hundred thirty-four".