215432234 has 8 divisors (see below), whose sum is σ = 323662368. Its totient is φ = 107544780.

The previous prime is 215432221. The next prime is 215432291. The reversal of 215432234 is 432234512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×215432234² = 92822094892461512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84092 + ... + 86615.

It is an arithmetic number, because the mean of its divisors is an integer number (40457796).

Almost surely, 2^215432234 is an apocalyptic number.

215432234 is a deficient number, since it is larger than the sum of its proper divisors (108230134).

215432234 is a wasteful number, since it uses less digits than its factorization.

215432234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171340.

The product of its digits is 5760, while the sum is 26.

The square root of 215432234 is about 14677.6099553027. The cubic root of 215432234 is about 599.4738294499.

Adding to 215432234 its reverse (432234512), we get a palindrome (647666746).

The spelling of 215432234 in words is "two hundred fifteen million, four hundred thirty-two thousand, two hundred thirty-four".